Sahih Muslim Book 31, Hadith Number 6128.

Chapter : The merits of the tribes of Ghifir, Ashia’, Muzaina, Tamim, Daws and Tayyi.

Abu Bakra reported from the Messenger of Allah (may peace be upon him) that Aslam, Ghifar, Muzaina and Juhaina are better than Banu Tamim, Banu Amir and their allies Banu Asad and Ghatfan.