Musnad Ahmad 32:863

Muhammad ibn Ja'far narrated to us, Shu'bah narrated to us, and Yazid ibn Harun narrated to us, Shu'bah informed us, he said: I heard Qatadah narrating from Anas ibn Malik, who said: Shall I not narrate to you a hadith I heard from the Messenger of Allah, may Allah bless him and grant him peace, which no one after me will narrate to you having heard it from him? "Indeed, among the signs of the Hour are: that knowledge will be lifted, ignorance will appear, adultery will become widespread, wine will be drunk, men will depart, and women will remain, until there is one guardian for fifty women."