Sahih Muslim · Hadith 180

وحدثني زهير بن حرب، حدثنا يحيى بن سعيد، عن حسين المعلم، عن قتادة، عن أنس، عن النبي صلى الله عليه وسلم قال ‏"‏ والذي نفسي بيده لا يؤمن عبد حتى يحب لجاره - أو قال لأخيه - ما يحب لنفسه ‏"‏ ‏.‏

It is narrated on the authority of Anas that the Prophet (may peace blessings be upon him) observed: By Him in whose Hand is my life, no, bondsman (truly) believes till he likes for his neighbour, or he (the Holy Prophet) said: for his brother, whatever he likes for himself.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).