It was narrated from 'Aishah that the Messenger of Allah ﷺ used to perform Ghusl; he and I from a single vessel, both of us scooping water from it. (Using translation from Nasāʾī 232)
أَنَّ رَسُولَ اللهِ ﷺ كَانَ «يَغْتَسِلُ وَأَنَا مِنْ إِنَاءٍ وَاحِدٍ نَغْتَرِفُ مِنْهُ جَمِيعًا»