"I used to perform Ghusl - the Messenger of Allah (ﷺ) and I - from one vessel. He would compete with me and I would with him until he would say: 'Leave me some' and I would say: 'Leave me some.'"
Sunan an-Nasa'i Book 1, Hadith 240
← Previous Hadith "I met a man who accompanied the Prophet (ﷺ) as Abu Hurairah (may Allah be pleased with him), accompanied him for four years. He said: 'The Messenger of Allah (ﷺ) forbade any one of us to comb his hair each day, or to urinate in the place where he performs Ghusl, or for a man to perform Ghusl using the leftover water of a women, or a woman to perform Ghusl using the leftover water of a man - they should scoop it out together.'" It is said this is to prevent him from making his physical appearance his main aim.

Sunan an-Nasa'i Book 1, Hadith 239 Next Hadith → It was narrated from Umm Hani' that the Messenger of Allah (ﷺ) performed Ghusl, he and Maimunah from a single vessel, a bowl in which there were traces of dough.

Sunan an-Nasa'i Book 1, Hadith 241