The Messenger of Allah ﷺ used to visit all his wives with a single bath.
حدثنا حيوة بن شريح حدثنا بقية حدثنا شعبة عن هشام بن زيد
كان رسول الله ﷺ يطوف على نسائه بغسل واحد
Its isnad is sahih. Haywa bin Shurayh is Hadrami, and Baqiyyah is Ibn Walid. I have graded his hadith here as sahih because he explicitly stated that he heard it directly. The hadith has already appeared at 12637.