Musnad Abu Ya'la al-Mawsili 116:16

Shu'bah said: Qatadah narrated to us, from Anas bin Malik, with its like, and he added in it: He said: The Messenger of Allah (ﷺ) called the Ansar specifically. He said: "Is there anyone among you who is not of you?" They said: "No, except a nephew of ours." The Messenger of Allah (ﷺ) said: "The nephew of a people is one of them." And the Messenger of Allah (ﷺ) said: "Indeed, the Quraish are recently removed from the Age of Ignorance (Jahiliyyah), and I intended to reconcile them and compensate them."