(Imām Bukhārī narrates): Musaddad narrated to us, he said: Yahyā narrated to us, from Shu'bah, from Qatādah, from Anas, may Allāh be pleased with him, he said: I will surely narrate to you a hadith which no one will narrate to you after me. I heard the Messenger of Allāh ﷺ saying:

that among the signs of the Hour is this: that knowledge will decrease, and ignorance will prevail, and fornication will occur abundantly, and women will become many and men will become few, until one man will be the guardian of fifty women.