Sayyiduna ‘Adi bin Hatim (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) said:“There are two types of vows. So whoever makes a vow for the sake of Allah, let him fulfill it, and whoever makes a vow concerning disobedience to Allah, its expiation is the same as the expiation for breaking an oath.”

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates that the Noble Prophet (peace and blessings be upon him) said: "Whoever makes a vow without mentioning its name, its expiation will be the expiation for breaking an oath. And whoever makes a vow concerning disobedience to Allah Almighty, its expiation will be the expiation for breaking an oath. And whoever makes a vow that is beyond his ability (i.e., he cannot fulfill it), its expiation will be the expiation for breaking an oath. And whoever makes a vow in the name of Allah Almighty, which he is able to fulfill, then he should fulfill it."

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates that the Noble Prophet (peace and blessings be upon him) said: "A vow is only regarding that matter in which obedience to Allah Almighty is observed. There is no validity to a vow concerning something usurped, or regarding divorce, or freeing a slave that is not in a person's ownership."

Lady Aisha (may Allah be pleased with her) narrates that the Noble Prophet (peace and blessings be upon him) said:“Whoever makes a vow regarding something that involves disobedience to Allah, its expiation is the same as the expiation for breaking an oath. And whoever makes a vow upon himself without specifying it, its expiation is the same as the expiation for breaking an oath. And whoever sends his wealth as a gift to the Ka’bah for any purpose other than seeking the pleasure of Allah, its expiation is the same as the expiation for breaking an oath. And whoever gives his wealth in charity to the poor for any purpose other than seeking the pleasure of Allah, its expiation is also the same as the expiation for breaking an oath. And whoever obligates upon himself to walk to the House of Allah (the Ka’bah) for any reason other than seeking the pleasure of Allah, its expiation is the same as the expiation for breaking an oath. Whoever makes a vow to walk to the House of Allah for something with the intention of seeking Allah’s pleasure, then he should go riding, not walking; when he reaches Makkah, he should fulfill his vow. And whoever makes a vow in the name of Allah with the intention of seeking Allah’s pleasure, he should fear Allah and strive to fulfill it, as long as the vow does not exhaust him (i.e., as long as he is not rendered incapable of fulfilling it).”

Abdullah bin Abbas (may Allah be pleased with them) narrates that the Prophet Muhammad (peace be upon him) said: "Whoever makes a vow without specifying it, its expiation is the same as the expiation for breaking an oath. And whoever makes a vow that he is unable to fulfill, its expiation is the same as the expiation for breaking an oath. And whoever makes a vow that he is able to fulfill, then he should fulfill it."

Ibn Harmalah narrates that a man asked Sa'id bin al-Musayyib, he said: "I have made a vow that I will walk to the House of Allah (the Ka'bah) on foot." So Sa'id said: "Did you use the word 'vow' (nadhar)?" He replied: "No!" So Sa'id said: "Nothing is obligatory upon you."

Abdullah bin Abbas (may Allah be pleased with them both) narrates that the Prophet Muhammad (peace be upon him) passed by a man named Abu Isra’il, who was standing in the sun. The Prophet (peace be upon him) inquired:“What is the matter with him?”They informed him that he had vowed not to speak, not to seek shade, not to sit down, and to fast. The Prophet (peace be upon him) said:“Tell him to speak, to come into the shade, to sit down, and to continue his fast.”(The narrator says:) The Prophet (peace be upon him) did not instruct him to offer any expiation.

It is similar to the previous hadith with a difference in the chain of narration.

This same narration is also transmitted with another chain of narration from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both).

Abdullah bin Abbas (may Allah be pleased with them both) narrates that once the Prophet Muhammad (peace be upon him) passed by Abu Isra'il (after that, the narrator has reported the hadith as previously mentioned).