question #1 Sahih Muslim 321d, Book 3, Hadith 54 : What does this narration teach about the permissibility of sharing water for bathing between spouses?

I and the Messenger of Allah (ﷺ) took a bath from one vessel which was placed between me and him and he would get ahead of me, so that I would say: Spare (some water for) me, spare (some water for) me; and she said that they had had sexual intercourse.