Musnad Abu Ya'la al-Mawsili 115:199

Muhammad ibn Mahdi narrated to us, Abd al-Razzaq narrated to us, Ma'mar informed us, from Qatadah, who said: Anas said to us, "Shall I not narrate to you a hadith that you will not find anyone after me to narrate to you? I heard the Messenger of Allah, peace and blessings of Allah be upon him, saying: 'Among the signs of the Hour are that knowledge will disappear, ignorance will appear, wine will be drunk, adultery will become widespread, men will decrease, and women will increase, until one man will be the guardian of fifty women.'"