Sahih al-Bukhari Book 67, Hadith 164
I will narrate to you a Habith I heard from Allah's Messenger (ﷺ) and none other than I will tell you of it. I
heard Allah's Messenger (ﷺ) saying, "From among the portents of the Hour are the following: Religious
knowledge will be taken away; General ignorance (in religious matters) will increase; illegal Sexual
intercourse will prevail: Drinking of alcoholic drinks will prevail. Men will decrease in number, and
women will increase in number, so much so that fifty women will be looked after by one man."
I heard Allah's Messenger (ﷺ) who was on the pulpit, saying, "Banu Hisham bin Al-Mughira have requested me to allow them to marry their daughter to `Ali bin Abu Talib, but I don't give permission, and will not give permission unless `Ali bin Abi Talib divorces my daughter in order to marry their daughter, because Fatima is a part of my body, and I hate what she hates to see, and what hurts her, hurts me."
Allah's Messenger (ﷺ) said, "Beware of entering upon the ladies." A man from the Ansar said, "Allah's Apostle! What about Al-Hamu the in-laws of the wife (the brothers of her husband or his nephews etc.)?" The Prophet (ﷺ) replied: The in-laws of the wife are death itself.