Musnad Ahmad 30:794

Yazid narrated to us, 'Abd al-Malik ibn Qudamah informed us, Ishaq ibn Bakr ibn Abi al-Furat narrated to us, from Sa'id ibn Abi Sa'id, from his father, from Abu Hurayrah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Indeed, there will come upon the people years of deception, in which the liar will be believed, the truthful one will be disbelieved, the treacherous one will be trusted, and the trustworthy one will be betrayed, and the Ruwaybidah will speak." It was said: "And what is the Ruwaybidah, O Messenger of Allah?" He said: "The foolish man who speaks regarding the public affair."