I slept one night in the house of Maimuna when the Messenger of Allah ﷺ was there, with a view to seeing the prayer of the Messenger 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."
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