Musnad Ahmad 30:1947

Aswad ibn Amir narrated to us, he said: Sufyan narrated to us, from a man, from Abu Zur'ah, from Abu Hurairah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "This is the charity of my people, and they are the harshest of people against the Dajjal," meaning the Banu Tamim. Abu Hurairah said: There was no tribe among the living that I disliked more than them, but I have loved them ever since I heard the Messenger of Allah (peace and blessings of Allah be upon him) say this.