Surah 66. At-Tahrim, Ayah 2

See 2:224 and the corresponding note [212], which shows that in certain circumstances an oath should be broken and then atoned for: hence the above phrase, "God has enjoined upon you the breaking and expiation" (with the term tahillah comprising both these concepts).

 See 5:89.

Cf. ii. 224. If your vows prevent you from doing good, or acting rightly, or making peace between persons, you should expiate the vow, but not refrain from your good deed.