Musannaf Ibn Abi Shayba 37:446

Waki’ narrated to us, from Hisham al-Dastawa’i, from Qatada, from Anas, who said: Shall I not narrate to you a hadith that no one will narrate to you after me? The Messenger of Allah (peace and blessings of Allah be upon him) said: The Hour will not be established until there is one man for fifty women.