Musnad Abu Ya'la al-Mawsili 155:140

From Abu Hurayrah, from the Prophet, peace and blessings of Allah be upon him, who said: Ghifar, Aslam, Muzaynah, and whoever is from Juhaynah are better than the two allies: Ghatafan, Asad, Hawazin, and Tamim, and those below them. For they are the people of horses and fur.