Hadith #6265 (Sahih Muslim)
Book: The Book of the Merits of the Companions
Narrator(s): Ibrahim bin Muhammad bin Talha إبراهيم بن محمد بن طلحة بن عبيد الله
Grade: Sahih

I heard Abu Sa’ld delivering an address in the presence of Abu ‘Utba that the Messenger of Allah (ﷺ) said: The worthiest settlements of the Ansar are those of Banu Najjar, then of Banu ‘Abu al-Ashhal and then of Banu Harith and then of Banu Khazraj and then of the clan of Banu Sa’idah, and if I were to give preference to anyone besides them I would have given preference to my relatives.

Source: https://parallelquran.com/hadith/sahih-muslim-6265/