It was narrated that 'Aishah said:
"The Messenger of Allah (ﷺ) used to perform Ghusl from a vessel which was the size of a Faraq [1] and he and I used to perform Ghusl using a single vessel."[1] Sixteen Ratls.
English reference: Vol. 1, Book 1, Hadith 229
Arabic reference: Book 1, Hadith 230