Sahih Muslim
The Book Pertaining to the Merits of the Companions (Allah Be Pleased With Them) of the Holy Prophet (May Peace Be Upon Him) (Kitab Al-Fadail Al-Sahabah)
Book Number: 031 / Hadith Number: 6134
Abu Huraira reported: There are some distinguishing features of Banu Tamim which I heard from Allah's Messenger (may peace be upon him) and my love for them is never on the decline after that and the words are: They are the bravest amongst people in the battlefield and there is no mention of (the word)" Dajjal".