The Book of the Believer · Hadith 180 (#Ḥadīth #10)
Chapter 8 | What Allah (azwj) has Forbidden a Believer to do Against a Fellow Believer
180 - وعن أبي عبد الله عليه السلام أنه قال: أيما مؤمن مشى مع أخيه في حاجة ولم يناصحه، فقد خان الله ورسوله.
180. It has been narrated that Abu 'Abd Allah said: Any believer who goes with his brother for a need to help him and does not counsel him correctly has been disloyal to Allah and His Messenger.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).