Sunan Abi Dawud, Hadith 4773

`A’isha said : A man asked permission to see the Prophet, and he said: He is a bad son of the tribe, or: He is a bad member of the tribe. He then said : Give him permission. Then when he entered, he spoke to him leniently. `A’isha asked : Apostle of Allah! You spoke to him leniently while you said about him what you said! He replied: The one who will have the worst position in Allah’s estimation on the Day of Resurrection will be the one whom people left alone for fear of his ribaldry.

حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا سُفْيَانُ، عَنِ ابْنِ الْمُنْكَدِرِ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، قَالَتِ اسْتَأْذَنَ رَجُلٌ عَلَى النَّبِيِّ صلى الله عليه وسلم فَقَالَ ‏"‏ بِئْسَ ابْنُ الْعَشِيرَةِ ‏"‏ ‏.‏ أَوْ ‏"‏ بِئْسَ رَجُلُ الْعَشِيرَةِ ‏"‏ ‏.‏ ثُمَّ قَالَ ‏"‏ ائْذَنُوا لَهُ ‏"‏ ‏.‏ فَلَمَّا دَخَلَ أَلاَنَ لَهُ الْقَوْلَ فَقَالَتْ عَائِشَةُ يَا رَسُولَ اللَّهِ أَلَنْتَ لَهُ الْقَوْلَ وَقَدْ قُلْتَ لَهُ مَا قُلْتَ ‏.‏ قَالَ ‏"‏ إِنَّ شَرَّ النَّاسِ عِنْدَ اللَّهِ مَنْزِلَةً يَوْمَ الْقِيَامَةِ مَنْ وَدَعَهُ - أَوْ تَرَكَهُ - النَّاسُ لاِتِّقَاءِ فُحْشِهِ ‏"‏ ‏.‏

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also referenced under: Hadith 4791 (DarusSalam)