(What is said regarding) the sweat of a Junub. And a Muslim never becomes impure
حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنَا حُمَيْدٌ، قَالَ حَدَّثَنَا بَكْرٌ، عَنْ أَبِي رَافِعٍ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم لَقِيَهُ فِي بَعْضِ طَرِيقِ الْمَدِينَةِ وَهْوَ جُنُبٌ، فَانْخَنَسْتُ مِنْهُ، فَذَهَبَ فَاغْتَسَلَ، ثُمَّ جَاءَ فَقَالَ " أَيْنَ كُنْتَ يَا أَبَا هُرَيْرَةَ ". قَالَ كُنْتُ جُنُبًا، فَكَرِهْتُ أَنْ أُجَالِسَكَ وَأَنَا عَلَى غَيْرِ طَهَارَةٍ. فَقَالَ " سُبْحَانَ اللَّهِ، إِنَّ الْمُؤْمِنَ لاَ يَنْجُسُ ".
Narrated Abu Huraira: The Prophet (ﷺ) came across me in one of the streets of Medina and at that time I was Junub. So I slipped away from him and went to take a bath. On my return the Prophet (ﷺ) said, "O Abu Huraira! Where have you been?" I replied, "I was Junub, so I disliked to sit in your company." The Prophet (ﷺ) said, "Subhan Allah! A believer never becomes impure."