The Book of Oaths

ุงู„ู†ู‘ูŽุฐู’ุฑู

The Book of Dhihar

Glossary

Chapter on Vows 1512

Whoever vows (to do) an act of obedience is obligated to do it 1513 because the Messenger of Allah (SA) said, โ€œWhoever vows to obey Allah, let him obey Him.โ€ 1514

ู…ูŽู†ู’ ู†ูŽุฐูŽุฑูŽ ุทูŽุงุนูŽุฉู‹ุŒ ู„ูŽุฒูู…ูŽู‡ู ููุนู’ู„ูู‡ูŽุงุ› ู„ูู‚ูŽูˆู’ู„ู ุฑูŽุณููˆู’ู„ู ุงู„ู„ู‡ู :"ู…ูŽู†ู’ ู†ูŽุฐูŽุฑูŽ ุฃูŽู†ู’ ูŠูุทููŠุนูŽ ุงู„ู„ู‘ูŽู‡ูŽ ููŽู„ู’ูŠูุทูุนู’ู‡ู".

1512. Taking a vow makes a particular action obligatory on oneself, even though it is not normally obligatory in Sharia.

1513. The Ruling on Making and Fulfilling a Vow
They all agreed that it is binding to fulfill a valid vow of a mustaแธฅab deed.

They disagreed on the ruling on taking a vow.

(A): Makrooh.

(-H): Mustaแธฅabb.
(-M): Mustaแธฅabb if it is not conditional, and makrooh if it is.

(-S): Mustaแธฅabb if it is for the pleasure of Allah, and makrooh if it is to encourage or deter oneself or others from a certain conduct.

Those who said that it is mustaแธฅabb argued that it is obligating oneself to perform a virtuous act of worship.

The reason why it is makrooh according to (A) is that it is (usually) conditional, and also because it adds a burden on oneself that is not prescribed. Anyone who wants to excel in worship may do that without taking vows. The textual proof for (A) is the statement of the Messenger of Allah (SA):

โ€œDo not make vows, for vows have no effect on what is decreed. They are only a means of extracting something from the miserly.โ€ (M โ€“ from Abu Hurayrah)

ู„ูŽุง ุชูŽู†ู’ุฐูุฑููˆุง ููŽุฅูู†ู‘ูŽ ุงู„ู†ู‘ูŽุฐู’ุฑูŽ ู„ูŽุง ูŠูุบู’ู†ููŠ ู…ูู†ู’ ุงู„ู’ู‚ูŽุฏูŽุฑู ุดูŽูŠู’ุฆู‹ุง ูˆูŽุฅูู†ู‘ูŽู…ูŽุง ูŠูุณู’ุชูŽุฎู’ุฑูŽุฌู ุจูู‡ู ู…ูู†ู’ ุงู„ู’ุจูŽุฎููŠู„ู

1514. (B โ€“ from โ€˜ร‚โ€™ishah) The rest of the hadith is:

โ€œโ€ฆ and whoever vows to disobey Allah, let him not disobey Him.โ€

ูˆูŽู…ูŽู†ู’ ู†ูŽุฐูŽุฑูŽ ุฃูŽู†ู’ ูŠูŽุนู’ุตููŠูŽู‡ู ููŽู„ุงูŽ ูŠูŽุนู’ุตูู‡ู

man vowing a fast he cannot tolerate, then he must expiate for it 1515because the Messenger of Allah (SA) said, โ€œIf one takes a vow that he cannot fulfill, its expiation is the same as that for an oath.โ€ 1516

ูƒูŽูู‘ูŽุงุฑูŽุฉู ูŠูŽู…ููŠู’ู†ูุ› ู„ูู‚ูŽูˆู’ู„ู ุฑูŽุณููˆู’ู„ู ุงู„ู„ู‡ู : "ู…ูŽู†ู’ ู†ูŽุฐูŽุฑูŽ ู†ูŽุฐู’ุฑุงู‹ ู„ูŽุง ูŠูุทููŠู‚ูู‡ูุŒ ููŽูƒูŽูู‘ูŽุงุฑูŽุชูู‡ู ูƒูŽูู‘ูŽุงุฑูŽุฉู ูŠูŽู…ููŠู†ู".

If one vows to walk to the sacred house of Allah, his or her vow will only be fulfilled by walking for Hajj or โ€˜umrah; 1517 if unable to walk, he or she should ride and expiate. 1518

ูˆูŽู…ูŽู†ู’ ู†ูŽุฐูŽุฑูŽ ุงู„ู’ู…ูŽุดู’ูŠูŽ ุฅูู„ูŽู‰ ุจูŽูŠู’ุชู ุงู„ู„ู‡ู ุงู„ู’ุญูŽุฑูŽุงู…ูุŒ ู„ูŽู…ู’ ูŠูŽุฌู’ุฒูู‡ู ุฅูู„ุงู‘ูŽ ุงู„ู’ู…ูŽุดู’ูŠู ูููŠู’ ุญูŽุฌู‘ู ุฃูŽูˆู’ ุนูู…ู’ุฑูŽุฉูุŒ ููŽุฅูู†ู’ ุนูŽุฌูŽุฒูŽ ุนูŽู†ู ุงู„ู’ู…ูŽุดู’ูŠูุŒ ุฑูŽูƒูุจูŽ ูˆูŽูƒูŽูู‘ูŽุฑูŽ.

1515. This is different from vowing to do something impossible (muแธฅรขl), like fasting yesterday. In such case, the authorized view in the madh-hab is that expiation is not required. (A)

1516. (D โ€“ from Ibn โ€˜Abbรขs) The rest of the report says:

โ€œIf someone takes a vow but does not name it, its expiation is the same as that for an oath; if someone takes a vow to do an act of disobedience, its expiation is the same as that for an oath; and if someone takes a vow that is beyond his or her capacity, its expiation is the same as that for an oath. However, if someone takes a vow that is within his or her capacity, he or she must fulfill it.โ€

ู…ูŽู†ู’ ู†ูŽุฐูŽุฑูŽ ู†ูŽุฐู’ุฑู‹ุง ู„ูŽู…ู’ ูŠูุณูŽู…ู‘ูู‡ู ุŒ ููŽูƒูŽูู‘ูŽุงุฑูŽุชูู‡ู ูƒูŽูู‘ูŽุงุฑูŽุฉู ูŠูŽู…ููŠู†ู ุŒ ูˆูŽู…ูŽู†ู’ ู†ูŽุฐูŽุฑูŽ ู†ูŽุฐู’ุฑู‹ุง ูููŠ ู…ูŽุนู’ุตููŠูŽุฉู ุŒ ููŽูƒูŽูู‘ูŽุงุฑูŽุชูู‡ู ูƒูŽูู‘ูŽุงุฑูŽุฉู ูŠูŽู…ููŠู†ู ุŒ ูˆูŽู…ูŽู†ู’ ู†ูŽุฐูŽุฑูŽ ู†ูŽุฐู’ุฑู‹ุง ู„ูŽุง ูŠูุทููŠู‚ูู‡ู ุŒ ููŽูƒูŽูู‘ูŽุงุฑูŽุชูู‡ู ูƒูŽูู‘ูŽุงุฑูŽุฉู ูŠูŽู…ููŠู†ู ุŒ ูˆูŽู…ูŽู†ู’ ู†ูŽุฐูŽุฑูŽ ู†ูŽุฐู’ุฑู‹ุง ุฃูŽุทูŽุงู‚ูŽู‡ู ุŒ ููŽู„ู’ูŠูŽูู ุจูู‡ู

The scholars of Hadith, including Abu Dรขwood, accepted the version of this hadith that was mawqoof (traceable only to the Companion). At the least, it is the fatwa of Ibn โ€˜Abbรขs.

1517. Because that is implied in the vow.

1518. Due to the report of Ibn โ€˜Abbรขs. Also, โ€˜Uqbah ibn โ€˜ร‚mir (RA) narrated that his sister took a vow to walk barefooted to Allahโ€™s House (for pilgrimage). Then she asked him to consult Allahโ€™s Messenger (SA), so he consulted him and the Prophet (SA) said, โ€œLet her walk and ride.โ€ (Ag)
In another report of the same incident, the Prophet (SA) said:

โ€œAllah benefits not from the suffering of your sister; let her perform Hajj riding and expiate for her oath.โ€ (D. D:controversial authenticity, Ibn แธคajar:R, al-โ€˜Ayni and Aแธฅmad Shรขkir:S)

ุฅูู†ู‘ูŽ ุงู„ู„ู‘ูŽู‡ูŽ ู„ุงูŽ ูŠูŽุตู’ู†ูŽุนู ุจูุดูŽู‚ูŽุงุกู ุฃูุฎู’ุชููƒูŽ ุดูŽูŠู’ุฆู‹ุงุŒ ููŽู„ู’ุชูŽุญูุฌู‘ูŽ ุฑูŽุงูƒูุจูŽุฉู‹ ูˆูŽู„ู’ุชููƒูŽูู‘ูุฑู’ ุนูŽู†ู’ ูŠูŽู…ููŠู†ูู‡ูŽุง

If one vows a consecutive fast but is unable to do it consecutively, he should divide it and expiate. If, in the middle of the fast, he finds himself unable to continue it consecutively, he will be given the choice of restarting it anew 1519or completing the remaining days and expiating. If he interrupts the fast without an excuse, he must restart it anew. If one vows the fast of certain days 1520 and he breaks his fast in some of them, he must finish the fast, make up (for the missed days), and expiate, whether or not he had an excuse. 1521

ูˆูŽุฅูู†ู’ ู†ูŽุฐูŽุฑูŽ ุตููŠูŽุงู…ู‹ุง ู…ูุชูŽุชูŽุงุจูุนู‹ุงุŒ ููŽุนูŽุฌูŽุฒูŽ ุนูŽู†ู ุงู„ุชู‘ูŽุชูŽุงุจูุนูุŒ ุตูŽุงู…ูŽ ู…ูุชูŽููŽุฑู‘ูู‚ู‹ุงุŒ ูˆูŽูƒูŽูู‘ูŽุฑูŽุŒ ูˆูŽุฅูู†ู’ ุชูŽุฑูŽูƒูŽ ุงู„ุชู‘ูŽุชูŽุงุจูุนูŽ ู„ูุนูุฐู’ุฑู ูููŠู’ ุฃูŽุซู’ู†ูŽุงุฆูู‡ูุŒ ุฎููŠู‘ูุฑูŽ ุจูŽูŠู’ู†ูŽ ุงุณู’ุชูุฆู’ู†ูŽุงููู‡ู ูˆูŽุจูŽูŠู’ู†ูŽ ุงู„ู’ุจูู†ูŽุงุกู ูˆูŽุงู„ุชู‘ูŽูƒู’ูููŠู’ุฑูุŒ ูˆูŽุฅูู†ู’ ุชูŽุฑูŽูƒูŽู‡ู ู„ูุบูŽูŠู’ุฑู ุนูุฐู’ุฑู ูˆูŽุฌูŽุจูŽ ุงุณู’ุชูุฆู’ู†ูŽุงููู‡ู. ูˆูŽุฅูู†ู’ ู†ูŽุฐูŽุฑูŽ ู…ูุนูŽูŠู‘ูŽู†ู‹ุงุŒ ููŽุฃูŽูู’ุทูŽุฑูŽ ูููŠู’ ุจูŽุนู’ุถูู‡ูุŒ ุฃูŽุชูŽู…ู‘ูŽู‡ู ูˆูŽู‚ูŽุถูŽู‰ุŒ ูˆูŽูƒูŽูู‘ูŽุฑูŽ ุจููƒูู„ู‘ู ุญูŽุงู„ู.

If one vows (the emancipation of) a slave, then (the emancipation of) any slave eligible to fulfill the oath will suffice, unless he vowed (to emancipate) a particular slave.

ูˆูŽุฅู†ู’ ู†ูŽุฐูŽุฑูŽ ุฑูŽู‚ูŽุจูŽุฉู‹ุŒ ููŽู‡ููŠูŽ ุงู„ู‘ูŽุชููŠู’ ุชูุฌู’ุฒูุฆู ุนูŽู†ู ุงู„ู’ูˆูŽุงุฌูุจูุŒ ุฅูู„ุงู‘ูŽ ุฃูŽู†ู’ ูŠูŽู†ู’ูˆููŠูŽ ุฑูŽู‚ูŽุจูŽุฉู‹ ุจูุนูŽูŠู’ู†ูู‡ูŽุง.

There is no (binding) vow to commit a sin 1522 or to carry out a (merely) permissible act, 1523 and

ูˆูŽุฅูู†ู’ ู†ูŽุฐูŽุฑูŽ ุตููŠูŽุงู…ู‹ุง ู…ูุชูŽุชูŽุงุจูุนู‹ุงุŒ ููŽุนูŽุฌูŽุฒูŽ ุนูŽู†ู ุงู„ุชู‘ูŽุชูŽุงุจูุนูุŒ ุตูŽุงู…ูŽ ู…ูุชูŽููŽุฑู‘ูู‚ู‹ุงุŒ ูˆูŽูƒูŽูู‘ูŽุฑูŽุŒ ูˆูŽุฅูู†ู’ ุชูŽุฑูŽูƒูŽ ุงู„ุชู‘ูŽุชูŽุงุจูุนูŽ ู„ูุนูุฐู’ุฑู ูููŠู’ ุฃูŽุซู’ู†ูŽุงุฆูู‡ูุŒ ุฎููŠู‘ูุฑูŽ ุจูŽูŠู’ู†ูŽ ุงุณู’ุชูุฆู’ู†ูŽุงููู‡ููˆูŽู„ุงูŽ ู†ูŽุฐู’ุฑูŽ ูููŠู’ ู…ูŽุนู’ุตููŠูŽุฉูุŒ ูˆูŽู„ุงูŽ ู…ูุจูŽุงุญูุŒ ูˆูŽู„ุงูŽ ูููŠู’ู…ูŽุง ู‚ูŽุตูŽุฏูŽ ุจูู‡ู

1519. The principle here is that one must fulfill the vow as long as he is capable, but if he is not capable, he will need to expiate. One who has an excuse for interrupting the fast will not be considered to have intentionally violated its continuity but still must expiate unless he redoes it consecutively, because he failed to fulfill the vow.

1520. Like the month of Rajab, for example.

1521. There is no mention here of whether or not one must restart the fast anew if one interrupts it without an excuse. According to Aแธฅmad himself, it is not required. However, the authorized position of the madh-hab (A) is that one must restart the fast anew, because even if the individual does not stipulate it, the saying, โ€œI will fast the month of Rajabโ€ implies a fast of all the days consecutively.

1522. Vowing to Do an Impermissible Act

One must not commit the sin.

(A) + (+H): One must still expiate, as in Abu Dรขwoodโ€™s report from Ibn โ€˜Abbรขs (above). Also, it was reported that the Prophet (SA) said:

there is no (binding) vow concerning that which one does not possess or cannot do. 1524 There is also no (binding) vow if an oath was intended. 1525

ุงู„ู’ูŠูŽู…ููŠู’ู†ูŽุ› ู„ูู‚ูŽูˆู’ู„ู ุฑูŽุณููˆู’ู„ู ุงู„ู„ู‡ู ๏ฒ: "ู„ุงูŽ ู†ูŽุฐู’ุฑูŽ ูููŠ ู…ูŽุนู’ุตููŠูŽุฉู ูˆูŽู„ุงูŽ ู†ูŽุฐู’ุฑูŽ ูููŠู…ูŽุง ู„ุงูŽ ูŠูŽู…ู’ู„ููƒู ุงุจู’ู†ู ุขุฏูŽู…ูŽ" ูˆู‚ุงู„: "ู„ุงูŽ ู†ูŽุฐู’ุฑูŽ ุฅูู„ุงู‘ูŽ ูููŠู…ูŽุง ุงุจู’ุชูุบููŠูŽ ุจูู‡ู

โ€œNo vow must be taken to do an act of disobedience, and the expiation for it is the same as for an oath.โ€ (D โ€“ from โ€˜ร‚โ€™ishah. Controversial; the majority: W)

ู„ุงูŽ ู†ูŽุฐู’ุฑูŽ ูููŠ ู…ูŽุนู’ุตููŠูŽุฉูุŒ ูˆูŽูƒูŽูู‘ูŽุงุฑูŽุชูู‡ู ูƒูŽูู‘ูŽุงุฑูŽุฉู ูŠูŽู…ููŠู†ู.

(A): One who vows to do something makrooh has the option of doing it or expiating for it, but it is recommended to expiate and avoid the makrooh. (a) + (-M, -S): In the two previous examples in the text, the vow is not valid, and no expiation is binding because of the hadiths mentioned in the main text.

1523. Vowing to Do a Permissible Act

(A/SM & Iqnรขโ€˜) + (+some Mรขlikis): This is an act such as eating a type of food, wearing wool, standing, sitting, etc. This vow is not binding (so one has the option to do it or not), but it is valid, according to the madh-hab, so if it is not fulfilled, he or she must expiate with the expiation of an oath.
The proof for this position (validating such vows) is that the Messenger of Allah (SA) went out for one of his expeditions, and when he came back, a black slave girl came to him and said, โ€œO Messenger of Allah, I made a vow that if Allah returned you safely, I would beat the duff before you and sing.โ€ The Messenger of Allah (SA) said to her:

โ€œIf you have made an oath, then beat it, but if you have not, then do not.โ€ (T โ€“ from Buraydah. T:R)

ุฅูู†ู’ ูƒูู†ู’ุชู ู†ูŽุฐูŽุฑู’ุชู ููŽุงุถู’ุฑูุจููŠ ูˆูŽุฅูู„ุงู‘ูŽ ููŽู„ุงูŽ

(a) + (-H, -S): The vow is not valid, and no expiation is required, because of the hadiths mentioned in the main text.

1524. As when one vows to slaughter a neighborโ€™s sheep or donate their car or demolish their house.

(A/SM & Iqnรขโ€˜): Anyone who makes such a vow must not fulfill it but must still expiate, according to the madh-hab, as in Abu Dรขwoodโ€™s report from Ibn โ€˜Abbรขs. (a) + (-H, -M, -S): The vow is not valid, and no expiation is required because of the hadiths mentioned in the main text.

1525. Such as when one says, โ€œIt is upon me to do such-and-such if I did, or did not do, such-and-such.โ€ The individual will not be bound to fulfill the oath but must expiate with the usual expiation for oaths.

All of this is because the Messenger of Allah (SA) said, โ€œThere is no (binding or valid) 1526 vow to commit disobedience, and no (binding or valid) vow concerning that which the son of Adam does not possess,โ€ 1527 and, โ€œThere is no (binding or valid) vow except for an act seeking the pleasure of Allah, the Exalted.โ€ 1528

ูˆูŽุฌู’ู‡ู ุงู„ู„ู‘ูŽู‡ู ุณูุจู’ุญูŽุงู†ูŽู‡"

If one combines in the vow an act of obedience with another act, he or she is only required to fulfill the act of obedience. This is due to the report of Ibn โ€˜Abbรขs where he said, โ€œThe Messenger of Allah (SA) saw a man standing, so he asked about him. The people said, โ€˜This is Abu Isrรขโ€™eel; he vowed not to speak, seek shade from the sun, or sit, and to fast.โ€™ The Messenger of Allah (SA) said, โ€˜Go and tell him to speak, seek shade, and sit, but let him complete his fast.โ€™โ€ 1529

ูˆูŽุฅูู†ู’ ุฌูŽู…ูŽุนูŽ ูููŠ ุงู„ู†ู‘ูŽุฐู’ุฑู ุจูŽูŠู’ู†ูŽ ุงู„ุทู‘ูŽุงุนูŽุฉู ูˆูŽุบูŽูŠู’ุฑูู‡ูŽุงุŒ ููŽุนูŽู„ูŽูŠู’ู‡ู ุงู„ู’ูˆูŽููŽุงุกู ุจูุงู„ุทู‘ูŽุงุนูŽุฉู ูˆูŽุญู’ุฏูŽู‡ูŽุง ู„ูู…ูŽุง ุฑูŽูˆูŽู‰ ุงุจู’ู†ู ุนูŽุจู‘ูŽุงุณู ู‚ูŽุงู„ูŽ: "ุฃูŽุจู’ุตูŽุฑูŽ ุฑูŽุณููˆู’ู„ู ุงู„ู„ู‡ู ุฑูŽุฌูู„ุงู‹ ู‚ุงูŽุฆูู…ู‹ุง ูููŠู’ ุงู„ุดู‘ูŽู…ู’ุณูุŒ ููŽุณูŽุฃูŽู„ูŽ ุนูŽู†ู’ู‡ูุŒ ููŽู‚ูŽุงู„ููˆู’ุง: ุฃูŽุจููˆู’ ุฅูุณู’ุฑูŽุงุฆููŠู’ู„ูŽุŒ ู†ูŽุฐูŽุฑูŽ ุฃูŽู†ู’ ูŠูŽู‚ููˆู’ู…ูŽ ูููŠู’ ุงู„ุดู‘ูŽู…ู’ุณู ูˆูŽู„ุงูŽ ูŠูŽู‚ู’ุนูุฏูŽ ูˆูŽู„ุงูŽ ูŠูŽุณู’ุชูŽุธูู„ู‘ูŽ ูˆูŽู„ุงูŽ ูŠูŽุชูŽูƒูŽู„ู‘ูŽู…ูŽุŒ ูˆูŽูŠูŽุตููˆู’ู…ูŽุŒ ููŽู‚ูŽุงู„ูŽ: ู…ูุฑููˆู‡ู ููŽู„ู’ูŠูŽุชูŽูƒูŽู„ู‘ูŽู…ู’ ูˆูŽู„ู’ูŠูŽุณู’ุชูŽุธูู„ู‘ูŽ ูˆู„ูŠูŽู‚ู’ุนูุฏู’ ูˆูŽู„ู’ูŠูุชูู…ู‘ูŽ ุตูŽูˆู’ู…ูŽู‡."

One who makes an unspecified vow for Allah will owe an expiation like that for a broken oath. 1530

ูˆูŽุฅูู†ู’ ู‚ูŽุงู„ูŽ: ู„ู„ู‡ู ุนูŽู„ูŽูŠู‘ูŽ ู†ูŽุฐู’ุฑูŒุŒ ูˆูŽู„ูŽู…ู’ ูŠูุณูŽู…ู‘ูู‡ูุŒ ููŽุนูŽู„ูŽูŠู’ู‡ู ูƒูŽูู‘ูŽุงุฑูŽุฉู

1526. The words inserted are required for clarity. Since people do make such vows, the Prophet (SA) must not have meant there are none, but rather that they are not valid and not binding. If they are not valid, then there is no fulfillment or expiation required; if they are not binding, then fulfilling them is not (required/permitted), but one must still expiate. The disagreement over the required implication (dalรขlat al-iqtiaแธรขโ€™) is one of the causes of disagreement among the scholars. (A): The required insertion is โ€˜bindingโ€™.

1527. (N, Ma โ€“ from โ€˜Imrรขn ibn แธคuแนฃayn. al-Albรขni:S)

1528. (D โ€“ from Ibn โ€˜Amr through the chain of โ€˜Amr ibn Shuโ€™ayb from his father from his grandfather. Controversial, but the majority considers it reliable)

1529. (B)

He or she will still need to expiate for all the vows they are not required to fulfill, but only once because they are treated as elements of one vow. (A/SM)

1530. Undefined Vow

ูŠูŽู…ููŠู’ู†ู.

Such as when someone says, โ€œUpon me is a vow,โ€ without identifying any act to be done. It was narrated that the Messenger of Allah (SA) said:

โ€œThe expiation of an undefined vow is (like) the expiation of an oath.โ€ (T โ€“ from โ€˜Uqbah ibn โ€˜ร‚mir. T:RS; many other scholars of Hadith:W, but the report of Ibn โ€˜Abbรขs corroborates it)

ูƒูŽูู‘ูŽุงุฑูŽุฉู ุงู„ู†ู‘ูŽุฐู’ุฑู ุฅูุฐูŽุง ู„ูŽู…ู’ ูŠูุณูŽู…ู‘ูŽ ูƒูŽูู‘ูŽุงุฑูŽุฉู ูŠูŽู…ููŠู†ู

Summary

If someone vows to perform an act of obedience that is not wรขjib in Sharia, and this act is within their capacity, then the vow is valid and binding on them.

If someone makes a vow to do something that is impossible, or that is already wรขjib in Sharia, the vow is invalid. (If it is wรขjib, it still must be done, not because of the vow but because of its original obligation.)

A vow that does not fall under either of these two scenarios is considered valid but not binding (that is, fulfilling it is not required, even though it is legally consequential and requires expiation if not fulfilled), as when one vows to do something that is beyond their capacity or that concerns something not in their possession.
If one vows to do a permissible act, he or she may either do it or expiate. If the act is makrooh, one may still do it or expiate, although it is encouraged to expiate and avoid it. If it is haram, one must avoid it and expiate. If the vow is for lajรขj (encouragement or deterrence) or made in a state of anger, one may either fulfill it or expiate. The same is true whenever an oath is intended. Finally, an undefined vow makes an expiation binding. The expiation of any of these vows is like that of an oath.

Book of Oaths

( Page : no 140)