Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ibnmajah:589ʿAlī b. Muḥammad > Wakīʿ > Ṣāliḥ b. Abū al-Akhḍar > al-Zuhrī > Anas

"I put out water for the Messenger of Allah for a bath, and he had a bath after going to all of his wives in one night."  

ابن ماجة:٥٨٩حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ حَدَّثَنَا وَكِيعٌ عَنْ صَالِحِ بْنِ أَبِي الأَخْضَرِ عَنِ الزُّهْرِيِّ عَنْ أَنَسٍ قَالَ

وَضَعْتُ لِرَسُولِ اللَّهِ ﷺ غُسْلاً فَاغْتَسَلَ مِنْ جَمِيعِ نِسَائِهِ فِي لَيْلَةٍ