'Abdur-Rahman bin Al-Qasim said:
"I heard Al-Qasim narrating that 'Aishah said: 'I used to perform Ghusl, the Messenger of Allah (ﷺ) and I from a single vessel, from Janabah.'" (IT)
English reference (IT): Vol. 1, Book 1, Hadith 234 (IT)
Arabic reference (IT): Book 1, Hadith 235 (IT)