Musannaf Ibn Abi Shayba 27:732

Waki’ narrated to us, from Sufyan, from Sa’d ibn Ibrahim, from Abd al-Rahman al-A’raj, from Abu Hurayrah, from the Prophet, may Allah bless him and grant him peace, who said: "Quraysh, the Ansar, Juhaynah, Muzaynah, Aslam, and Ghifar are the mawali (allies/clients) of Allah and His Messenger; they have no mawla other than Him."