Abu Huraira and Ibn ‘Umar reported God’s Messenger as saying,“Do not make vows, for a vow has no effect against fate; it is only from the miserly that it is a means by which something is extracted.”(Bukhari and Muslim.)

‘A’isha reported God’s Messenger as saying,“If anyone vows to obey God let him obey Him, but if anyone vows to disobey Him let him not disobey Him.”Bukhari transmitted it.

‘Imran b. Husain reported God's Messenger as saying,“A vow to do an act of disobedience must not be fulfilled, or one to do something over which one has no control.”Muslim transmitted it. A version has,“No vow must be taken to disobey God.”

‘Uqba b. ‘Amir reported God’s Messenger as saying,“The atonement for a vow is the same as for an oath.”Muslim transmitted it.

Ibn ‘Abbas said:While the Prophet was preaching a man was standing, so he asked about him and was told that he was Abu Isra’il who had taken a vow to stand and not to sit, or go into the shade, or speak, but to fast. Thereupon the Prophet said,“Command him to speak, go into the shade, sit and complete his fast.”Bukhari transmitted it.

Anas said that the Prophet saw an old man being supported between his sons, and on asking what was the matter with him and being told that he had taken a vow to walk, he said,“God most high has no need that this man should punish himself,”and he ordered him to ride.

In a version by Muslim on Abu Huraira’s authority he said,“Ride, old man, for God is not in need of you and your vow.”

Ibn ‘Abbas told that Sa'd b. ‘Ubada asked the Prophet for a decision about a vow taken by his mother who had died before fulfilling it, and that he gave decision that he should fulfil it on her behalf. (Bukhari and Muslim.)

Ka'b b. Malik told that he said,“Messenger of God, to make my repentance complete* I should divest myself of my property as sadaqa for God and His Messenger.”God's Messenger replied,“Retain some of your property, for that will be better for you.”So he said he would retain the portion he had at Khaibar. (Bukhari and Muslim.) This is part of a long tradition. * Mirqat, iii, 566 refers this to his withdrawal from the expedition to Tabuk without a valid reason. Pt. 10

‘A'isha reported God’s Messenger as saying,“No vow must be taken to do an act of disobedience, and the atonement for it is the same as for an oath.”Abu Dawud, Tirmidhi and Nasa’i transmitted it.