Sahih Muslim 2439
صحيح مسلم#2439SahihAnas b. Malik reported that the Messenger of Allah (ﷺ) gathered the Ansar and said:Is there someone alien among you? They said: No, but only the son of our sister. Upon this the Messenger of Allah (ﷺ) said: The son of the sister of the people is included among the tribe, and (farther) said: The Quraish have recently abandoned Jahillyya and have just been delivered from distress; I, therefore, intend to help them and conciliate them. Don't you feel happy that the people should return with worldly riches and you return with the Messenger of Allah to your houses? (So far as my love for you is concerned I should say) if the people were to tread a valley and the Ansar tread a narraw path (in a mountain) I would tread the narrow path of the Ansar
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 12:176