Hadith 794

It was narrated from Zadhan that ‘Ali (رضي الله عنه) said: I heard the Prophet () say: “Whoever leaves a space the size of a hair on his side when doing ghusl for janabah and does not make water reach it, Allah will punish him with such and such of fire.` `Ali (رضي الله عنه) said: From that time I disliked my head (i.e., hair).

حَدَّثَنَا عَفَّانُ، حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ، أَخْبَرَنَا عَطَاءُ بْنُ السَّائِبِ، عَنْ زَاذَانَ، أَنَّ عَلِيَّ بْنَ أَبِي طَالِبٍ، رَضِيَ اللَّهُ عَنْهُ قَالَ سَمِعْتُ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ مَنْ تَرَكَ مَوْضِعَ شَعَرَةٍ مِنْ جَسَدِهِ مِنْ جَنَابَةٍ لَمْ يُصِبْهَا الْمَاءُ فُعِلَ بِهِ كَذَا وَكَذَا مِنْ النَّارِ قَالَ عَلِيٌّ رَضِيَ اللَّهُ عَنْهُ فَمِنْ ثَمَّ عَادَيْتُ رَأْسِي‏.‏

Reference: 5307550
In-book reference: Book 5, Hadith 794