Musannaf Ibn Abi Shayba 37:459

Yazid ibn Harun narrated to us, he said: Muhammad ibn ‘Amr informed us, from Abu Salamah, from Abu Hurayrah, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "The Hour will not be established until thirty liars and impostors emerge, who lie about Allah and about His Messenger."