Sahih Bukhari Volume 1, Book 10, Hadith 698

حَدَّثَنَا أَحْمَدُ، قَالَ حَدَّثَنَا ابْنُ وَهْبٍ، قَالَ حَدَّثَنَا عَمْرٌو، عَنْ عَبْدِ رَبِّهِ بْنِ سَعِيدٍ، عَنْ مَخْرَمَةَ بْنِ سُلَيْمَانَ، عَنْ كُرَيْبٍ، مَوْلَى ابْنِ عَبَّاسٍ عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ قَالَ نِمْتُ عِنْدَ مَيْمُونَةَ وَالنَّبِيُّ صلى الله عليه وسلم عِنْدَهَا تِلْكَ اللَّيْلَةَ، فَتَوَضَّأَ ثُمَّ قَامَ يُصَلِّي، فَقُمْتُ عَلَى يَسَارِهِ، فَأَخَذَنِي فَجَعَلَنِي عَنْ يَمِينِهِ، فَصَلَّى ثَلاَثَ عَشْرَةَ رَكْعَةً، ثُمَّ نَامَ حَتَّى نَفَخَ ـ وَكَانَ إِذَا نَامَ نَفَخَ ـ ثُمَّ أَتَاهُ الْمُؤَذِّنُ، فَخَرَجَ فَصَلَّى وَلَمْ يَتَوَضَّأْ‏.‏ قَالَ عَمْرٌو فَحَدَّثْتُ بِهِ بُكَيْرًا فَقَالَ حَدَّثَنِي كُرَيْبٌ بِذَلِكَ

Narrated By Ibn 'Abbas : One night I slept at the house of (my aunt) Maimuna and the Prophet was there on that night. He performed ablution and stood up for the prayer. I joined him and stood on his left side but he drew me to his right and prayed thirteen Rakat and then slept till I heard his breath sounds. And whenever he slept, he used to breathe with audible sounds. The Mu'adhdhin came to the Prophet and he went out and prayed the morning prayer) without repeating the ablution.