Musnad Abu Ya'la al-Mawsili 115:229

Ubayd Allah narrated to us, Abd al-A’la narrated to us, Sa’id ibn Abi Arubah narrated to us, from Qatadah, from Anas ibn Malik, who said: "I shall narrate to you a hadith that I heard from the Messenger of Allah (may Allah bless him and grant him peace). No one after me shall narrate it to you having heard it from the Messenger of Allah (may Allah bless him and grant him peace). I heard the Messenger of Allah (may Allah bless him and grant him peace) saying: 'Indeed, among the signs of the Hour are that knowledge will be lifted, ignorance will appear, wine will be drunk, adultery will spread, men will decrease, and women will increase, until there is one guardian for fifty women.'"