It was narrated that Ibn 'Abbas said:
"My maternal aunt Maimunah told me that she and the Messenger of Allah (ﷺ) used to perform Ghusl from one vessel." (RU)
English reference (RU): Vol. 1, Book 1, Hadith 237 (RU)
Arabic reference (RU): Book 1, Hadith 238 (RU)