It was narrated from Yahya bin Sa`eed that he heard Anas bin Malik say:
The Messenger of Allah (ﷺ) said: “Shall I not tell you of the best tribe of the Ansar? Banun-Najjar, then Banu `Abdul Ashhal, then Banul-Harith bin al-Khazraj. then Banu Sa`idah.` and he said: `In each tribe of the Ansar there is goodness.”