Sahih Muslim 763k
Ibn 'Abbas reported: I slept one night in the house of Maimuna when the Apostle of Allah ﷺ was there, with a view to seeing the prayer of the Apostle of Allah ﷺ at night. The Apostle of Allah ﷺ entered into conversation with his wife for a short while, and then went to sleep, and the rest of the hadith is the same and in it mention is made of:" He then got up, performed ablution and brushed his teeth."
وَحَدَّثَنِي أَبُو بَكْرِ بْنُ إِسْحَاقَ، أَخْبَرَنَا ابْنُ أَبِي مَرْيَمَ، أَخْبَرَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، أَخْبَرَنِي شَرِيكُ بْنُ أَبِي نَمِرٍ، عَنْ كُرَيْبٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّهُ قَالَ رَقَدْتُ فِي بَيْتِ مَيْمُونَةَ لَيْلَةَ كَانَ النَّبِيُّ ﷺ عِنْدَهَا لأَنْظُرَ كَيْفَ صَلاَةُ النَّبِيِّ ﷺ بِاللَّيْلِ - قَالَ - فَتَحَدَّثَ النَّبِيُّ ﷺ مَعَ أَهْلِهِ سَاعَةً ثُمَّ رَقَدَ . وَسَاقَ الْحَدِيثَ وَفِيهِ ثُمَّ قَامَ فَتَوَضَّأَ وَاسْتَنَّ .