Abstaining from having sexual intercourse with drunken husband

Question 37: Is it permissible for a wife to desert her drunken husband’s marital bed and refuse him when he wants her, as she cannot bear his drunkenness? Is she considered a sinner for refusing to sleep with him and is cursed by the angels until morning as stated in the Hadeeth?

Answer: If the reality is as you mentioned, she is not considered a sinner. She must advise him and if he performs Tawbah (repentance to Allaah), praise be to Allaah. However, if he refuses and persists in committing this evil, she may ask for Talaaq (divorce initiated by a husband) to escape this Munkar (that which is unacceptable or disapproved of by Islaamic law and Muslims of sound intellect). If he refuses to divorce her, she may refer the matter to the court... read more here.

Man asking for his daughter’s divorce as the husband is a drunkard

Question 3: A man gave his daughter in marriage to a man whom he did not know well, then found out that his son-in-law is a drunkard who does not care about Islaamic rulings. Can he divorce his daughter from him?

Answer: If the situation is as you have mentioned, that you gave your daughter in marriage to a man whom you did not know well, and then you discovered that he is a drunkard and does not care about Islaamic rulings, this man is either one of two things: he either does not believe in the rulings of Islaam, and in this case he is considered a Kaafir (disbeliever), and his marriage contract to his wife is annulled by his Kufr (disbelief) through the legal ruler, or he does not follow the rulings out of negligence, while believing in them… read more here.