Sahih Muslim Book 31, Hadith Number 6123.

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

Abu Huraira reported Allah’s Messenger (may peace be upon him) as saying: The tribes of Ashja’, Ghifar and Muzaina and from the tribe of Juhaina they are better than Banu Tamim, Banu Amir and the allies of Asad and Ghatfan.