Sunan Abi Dawud, Hadith 4418

Abu Nadrah said: A man came to Prophet. He then mentioned a similar tradition but not completely. This version has: People began to speak ill of him but he (the Prophet) forbade them. Then they began to ask forgiveness from him, but he forbade them by saying. He is a man who had committed a sin. Allah will call him to account himself.

حَدَّثَنَا مُؤَمَّلُ بْنُ هِشَامٍ، حَدَّثَنَا إِسْمَاعِيلُ، عَنِ الْجُرَيْرِيِّ، عَنْ أَبِي نَضْرَةَ، قَالَ جَاءَ رَجُلٌ إِلَى النَّبِيِّ صلى الله عليه وسلم نَحْوَهُ وَلَيْسَ بِتَمَامِهِ قَالَ ذَهَبُوا يَسُبُّونَهُ فَنَهَاهُمْ قَالَ ذَهَبُوا يَسْتَغْفِرُونَ لَهُ فَنَهَاهُمْ قَالَ ‏ "‏ هُوَ رَجُلٌ أَصَابَ ذَنْبًا حَسِيبُهُ اللَّهُ ‏" ‏ ‏.‏

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also referenced under: Hadith 4432 (DarusSalam)