The Book of the Believer · Hadith 138 (#Ḥadīth #32)
Chapter 5 | The Reward of Helping a Believer, Relieving Him of Distress And Showing Him Kindness
138- وعن أبي عبد الله عليه السلام قال: قال رسول الله صلى الله عليه وآله وسلم: من أكرم مؤمنا، فإنما يكرم الله عز وجل
138. It has been reported that Abu 'Abd Allah said: The Messenger of Allah said: One who honors a believer has in fact honored Allah [M.G].
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).