The Book of the Believer · Hadith 173 (#Ḥadīth #3)
Chapter 8 | What Allah (azwj) has Forbidden a Believer to do Against a Fellow Believer
173 - وعن أبي عبد الله عليه السلام قال: قال النبي صلى الله عليه و آله وسلم: من أذاع فاحشة كان كمبتدئها، ومن عير مؤمنا بشئ لم يمت حتى يركبه.
173. It has been reported that Abu 'Abd Allah said: The Prophet said: One who spreads an indecency is like the one who started it; and one who dishonors a believer of something will not die until he perpetrates it himself.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).