1195 – Uqbah ibn ʿAmir (may Allah be pleased with him) reported that the Messenger of Allah ﷺ said, “The expiation for a vow is the same as the expiation for an oath.” Related by Muslim.

Al-Tirmidhi adds in his wording the clause, “if he did not specify it,” and he judged the report authentic. (1)

Abu Dawud transmits—traced back to the Prophet—from Ibn ʿAbbas: “Whoever makes a vow without specifying it, its expiation is the expiation for an oath; whoever makes a vow involving sin, its expiation is the expiation for an oath; and whoever makes a vow he cannot carry out, its expiation is the expiation for an oath.” Its chain of transmission is sound, though the leading hadith critics considered the Companion-level version more probable. (2)

Al-Bukhari relates from ʿA’ishah: “Whoever vows to disobey Allah must not disobey Him.” (3)

Muslim records, on the authority of ʿImran, “There is no fulfilment of a vow that entails sin.” (4)

Hadith grading:
For the additions that do not appear in the two Ṣaḥīḥs, al-Hāfiẓ Ibn Ḥajar has clarified their level of authenticity.

Glossary of hadith terms:
• nadhr (vow): derived from nadhara, yanḏuru, pattern faʿala (like ḍaraba); al-Miṣbāḥ, however, holds that the correct derivation is from the pattern faʿala (like qatala).