´Narrated Anas bin Malik:` that the Messenger of Allah (ﷺ) said: "Shall I inform you of the best houses of the Ansar, or of the best of the Ansar?" They said: "Of course, O Messenger of Allah!" He said: "Banu An-Najjar. Then those who come after them are Banu 'Abdul-Ashhal. Then those who come after them are Banu Al-Harith bin Al-Khazraj. Then those who come after them are Banu Sa'idah." Then he motioned with his hands, clenching his fingers, then opening them, like an archer does with his hands. He said: "And in all of the houses of the Ansar there is good."
Hadith Referenceسنن ترمذي / كتاب المناقب عن رسول الله صلى الله عليه وسلم / 3910
´Narrated Abu Usaid As-Sa'idi:` that the Messenger of Allah (ﷺ) said: "The Best houses of the Ansar are the houses of Banu An-Najjar, then the house of Banu 'Abdul-Ashhal, then Banu Al-Harith bin Al-Khazraj, then Banu Sa'idah. And in all of the houses of the Ansar there is good." So Sa'd said: "I do not see except that the Prophet (ﷺ) has preferred everyone over us." So it was said: "He preferred you over many."
Hadith Referenceسنن ترمذي / كتاب المناقب عن رسول الله صلى الله عليه وسلم / 3911