Narrated Abu Dhar:
That he heard the Prophet (ﷺ) saying, "If somebody accuses another of Fusuq (by calling him 'Fasiq' i.e. a wicked person) or accuses him of Kufr, such an accusation will revert to him (i.e. the accuser) if his companion (the accused) is innocent."
Reference | : Sahih al-Bukhari 6045 |
In-book reference | : Book 78, Hadith 75 |
USC-MSA web (English) reference | : Vol. 8, Book 73, Hadith 71 |
(deprecated numbering scheme) |