The Messenger of Allah ﷺ and one of his wives would bathe from a single vessel.
حدثنا عفان حدثنا شعبة عن عبد الله بن عبد الله بن جبر
كان رسول الله ﷺ والمرأة من نسائه يغتسلان من الإناء الواحد
Its isnad is sahih. It was mentioned previously at 12095 and 12255.