It was narrated that 'Aishah said:
"I used to perform Ghusl with the Messenger of Allah (ﷺ) from one vessel, which was the size of a Faraq." (JA)
English reference (JA): Vol. 1, Book 1, Hadith 232 (JA)
Arabic reference (JA): Book 1, Hadith 233 (JA)