(Imām Bukhārī narrates): Muhammad bin Bashar narrated to us, he said: Mu'adh bin Hisham narrated to us, he said: My father narrated to me, from Qatadah, he said: Hazrat Anas bin Malik (may Allāh be pleased with him) narrated to us that
the Prophet ﷺ used to honor all his wives with marital relations in one period of the day and night, and they were eleven pure wives. Qatadah says: I asked Hazrat Anas: Did you have the strength for that? He said: We used to say that he was given the strength of thirty men. And Sa'id said, from Qatadah: Hazrat Anas narrated to him that he had nine wives.
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنَا مُعَاذُ بْنُ هِشَامٍ، قَالَ حَدَّثَنِي أَبِي، عَنْ قَتَادَةَ، قَالَ حَدَّثَنَا أَنَسُ بْنُ مَالِكٍ
قَالَ كَانَ النَّبِيُّ صلى الله عليه وسلم يَدُورُ عَلَى نِسَائِهِ فِي السَّاعَةِ الْوَاحِدَةِ مِنَ اللَّيْلِ وَالنَّهَارِ، وَهُنَّ إِحْدَى عَشْرَةَ. قَالَ قُلْتُ لأَنَسٍ أَوَكَانَ يُطِيقُهُ قَالَ كُنَّا نَتَحَدَّثُ أَنَّهُ أُعْطِيَ قُوَّةَ ثَلاَثِينَ.
Reference: Sahih Al Bukhari 268