The vow made by a wife without prior permission from or subsequent consent of her husband on a matter that infringes on his conjugal rights is not valid, even if she made the vow before getting married. As for the validity of a wife’s vow made with respect to her own wealth without her husband’s consent, this is problematic (maḥall al‑ishkāl) [i.e.
based on obligatory precaution, it is not valid].[3] Therefore, in such a case, precaution (iḥtiyāṭ) must be observed except for [a vow made for] performing hajj, giving alms tax (zakat), giving alms to the poor (ṣadaqah), being benevolent to her mother and father, and maintaining good family ties (ṣilat al‑arḥām).