It was narrated that Hudhaifah said:"The Prophet came out and met me when I was sexually impure, so I kept away from him. Then I had a bath and came to him. He said: 'What is the matter with you?' I said: 'I was sexually impure.' The Messenger of Allah said: 'The Muslim does not become impure.'"
حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا وَكِيعٌ، ح وَحَدَّثَنَا إِسْحَاقُ بْنُ مَنْصُورٍ، أَنْبَأَنَا يَحْيَى بْنُ سَعِيدٍ، جَمِيعًا عَنْ مِسْعَرٍ، عَنْ وَاصِلٍ الأَحْدَبِ، عَنْ أَبِي وَائِلٍ، عَنْ حُذَيْفَةَ، قَالَ خَرَجَ النَّبِيُّ ـ صلى الله عليه وسلم ـ فَلَقِيَنِي وَأَنَا جُنُبٌ فَحِدْتُ عَنْهُ فَاغْتَسَلْتُ ثُمَّ جِئْتُ فَقَالَ " مَا لَكَ " . قُلْتُ كُنْتُ جُنُبًا . قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " إِنَّ الْمُسْلِمَ لاَ يَنْجُسُ " .
IbnMaja
The Book of Purification and its Sunnah • Hadith 535