Sunan an-Nasa'i 228
سنن النسائي#228SahihIt 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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 1:229