(Imām Bukhārī narrates): Abdul A'la bin Hammad narrated to us, he said: Yazid bin Zurai' narrated to us, he said: Sa'id narrated to us, from Qatadah, that Hazrat Anas bin Malik (may Allāh be pleased with him) narrated to him that the Prophet ﷺ
went to all his wives in one night, and in those days he had nine wives.
حَدَّثَنَا عَبْدُ الأَعْلَى بْنُ حَمَّادٍ، قَالَ حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، قَالَ حَدَّثَنَا سَعِيدٌ، عَنْ قَتَادَةَ، أَنَّ أَنَسَ بْنَ مَالِكٍ، حَدَّثَهُمْ
أَنَّ نَبِيَّ اللَّهِ صلى الله عليه وسلم كَانَ يَطُوفُ عَلَى نِسَائِهِ فِي اللَّيْلَةِ الْوَاحِدَةِ، وَلَهُ يَوْمَئِذٍ تِسْعُ نِسْوَةٍ.
Reference: Sahih Al Bukhari 284