(202) بَابُ سِبَابِ الْمُسْلِمِ فُسُوقٌ
Abu Dharr is reported as saying that he heard the Prophet, mayAllah bless him and grant him peace, say, "If a man accuses another manof deviance or accuses him of disbelief, that accusation will come backon him if his companion is not as he said." (IT)
Reference (IT): Al-Adab Al-Mufrad 432 (IT)
In-book reference (IT): Book 24, Hadith 14 (IT)
English translation (IT): Book 24, Hadith 432 (IT)