‘Abdur-Rahman bin Hurmuz Al-A’raj said: “Na’im the freed slave of Umm Salamah narrated to me that Umm Salamah was asked: ‘Can a woman perform Ghusl with a man?’ She said: ‘Yes, if she is well-mannered. I remember the Messenger of Allah ﷺ and I performing Ghusl from a single wash tub. We would pour water on our hands until they were clean then pour water over them.” Al-A’raj said: “Not mentioning the private area nor paying attention to it.”(Sahih)