Sunan Abi Dawud, Hadith 2383

Narrated 'Aishah, wife of Prophet: A man said to Messenger of Allah: Messenger of Allah, I was overtaken by dawn while I was sexually defiled, and I want to keep fast. The Messenger of Allah said: I am also overtaken by dawn while I am in the state of sexual defilement ; I also want to keep fast. I take a bath and I keep fast. The man said: Messenger of Allah, you are not like us ; Allah has forgiven you your past and future sins. The Messenger of Allah became angry and said: I swear by Allah, I hope I shall be the most fearful of you of Allah, and most familiar of you with what I follow.

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، - يَعْنِي الْقَعْنَبِيَّ - عَنْ مَالِكٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ مَعْمَرٍ الأَنْصَارِيِّ، عَنْ أَبِي يُونُسَ، مَوْلَى عَائِشَةَ عَنْ عَائِشَةَ، زَوْجِ النَّبِيِّ صلى الله عليه وسلم أَنَّ رَجُلاً قَالَ لِرَسُولِ اللَّهِ صلى الله عليه وسلم وَهُوَ وَاقِفٌ عَلَى الْبَابِ يَا رَسُولَ اللَّهِ إِنِّي أُصْبِحُ جُنُبًا وَأَنَا أُرِيدُ الصِّيَامَ ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ وَأَنَا أُصْبِحُ جُنُبًا وَأَنَا أُرِيدُ الصِّيَامَ فَأَغْتَسِلُ وَأَصُومُ ‏"‏ ‏.‏ فَقَالَ الرَّجُلُ يَا رَسُولَ اللَّهِ إِنَّكَ لَسْتَ مِثْلَنَا قَدْ غَفَرَ اللَّهُ لَكَ مَا تَقَدَّمَ مِنْ ذَنْبِكَ وَمَا تَأَخَّرَ فَغَضِبَ رَسُولُ اللَّهِ صلى الله عليه وسلم وَقَالَ ‏"‏ وَاللَّهِ إِنِّي لأَرْجُو أَنْ أَكُونَ أَخْشَاكُمْ لِلَّهِ وَأَعْلَمَكُمْ بِمَا أَتَّبِعُ ‏"‏ ‏.‏

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also referenced under: Hadith 2389 (DarusSalam)