I want to find out about lactation without going into details. What is the opinion regarding a husband drinking his wife's milk, intentionally or unintentionally? Thank you very much.

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.

The scholars are of the view that it is disliked for a husband to suckle or drink his wife's milk but if he does so, then this does not affect their marriage contract because the suckling of an adult person does not lead to the prohibition of marriage. This is the view of the majority of the scholars as Allah Says (what means): {Mothers may nurse [i.e. breastfeed] their children two complete years for whoever wishes to complete the nursing [period]…} [Quran 2:233]; and the Prophet said: “The suckling (that is considered) is only the one that is done for feeding from hunger.” [Al-Bukhari and Muslim]

An adult person does not usually suck to satisfy his hunger.

Allah knows best.