Sahih Muslim 170
صحيح مسلم#170SahihIt is narrated on the authority of Anas b. Malik that the Prophet (may peace and blessings be upon him) observed:"None amongst you believes (truly) until he loves for his brother" - or he said "for his neighbour" - "that which he loves for himself
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: 1:77