Musnad Ahmad 27:1194

Hajjaj and Aswad ibn Amir narrated to us, they said: Sharik narrated to us, from Abdullah ibn Isam Abu Alwan al-Hanafi, who said: I heard Ibn Umar saying: The Messenger of Allah, peace and blessings of Allah be upon him, said: "Indeed, in Thaqif there is a liar and a destroyer."