From Sahih Bukhari (Hadith 3504):
Narrated Abu Huraira:Allah's Messenger (ﷺ) said, "The tribe of Quraish, the Ansar, the (people of the tribe of) Julhaina, Muzaina, Aslam, Ashja', and Ghifar are my disciples and have no protectors except Allah and His Apostle
Reference: Bukhari 3504