حَدَّثَنَا أَبُو بَکْرِ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا الْأَسْوَدُ بْنُ عَامِرٍ حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ عَنْ عَطَائِ بْنِ السَّائِبِ عَنْ زَاذَانَ عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ عَنْ النَّبِيِّ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ مَنْ تَرَکَ مَوْضِعَ شَعَرَةٍ مِنْ جَسَدِهِ مِنْ جَنَابَةٍ لَمْ يَغْسِلْهَا فُعِلَ بِهِ کَذَا وَکَذَا مِنْ النَّارِ قَالَ عَلِيٌّ فَمِنْ ثَمَّ عَادَيْتُ شَعَرِي وَکَانَ يَجُزُّهُ
ابن ماجہ · Hadith 599
It was narrated from' Ali bin Abu Talib that the Prophet said: "Whoever leaves an area the size of a hair on his body and does not cleanse it from sexual impurity, such and such will be done to him in the Fire." 'Ali said: Because of that I am hostile toards my hair," and he used to shave his head.
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020