Is it permissible for a man to give the obligatory Zakat to one of his unmarriageable female relatives (mahārim) who is married to a man from the Prophet's household (Ahl al-Bayt)?

It is not permissible to give zakat to the wife if her husband is able to provide for her, because in that case, she is not considered poor. However, if the husband is poor and cannot meet her basic needs, then the wife is considered poor and eligible for zakat. The fact that a woman is the wife of a man from the household of the Prophet, peace and blessings be upon him, does not prevent her from receiving zakat if she is eligible for it, because she is not from the household, as the children of females are not included in Banu Hashim.