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.  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَغْتَسِلُ وَأَنَا مِنْ إِنَاءٍ وَاحِدٍ نَغْتَرِفُ مِنْهُ جَمِيعًا  

"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.'"  

كُنْتُ أَغْتَسِلُ أَنَا وَرَسُولُ اللَّهِ ﷺ مِنْ إِنَاءٍ وَاحِدٍ مِنَ الْجَنَابَةِ  

"I remember competing over the vessel with the Messenger of Allah ﷺ, when he and I were using it to perform Ghusl."  

لَقَدْ رَأَيْتُنِي أُنَازِعُ رَسُولَ اللَّهِ ﷺ الإِنَاءَ أَغْتَسِلُ أَنَا وَهُوَ مِنْهُ  

"The Messenger of Allah ﷺ and I used to perform Ghusl together using one vessel."  

كُنْتُ أَغْتَسِلُ أَنَا وَرَسُولُ اللَّهِ ﷺ مِنْ إِنَاءٍ وَاحِدٍ  

"My maternal aunt Maimunah told me that she and the Messenger of Allah ﷺ used to perform Ghusl from one vessel."  

أَنَّهَا كَانَتْ تَغْتَسِلُ وَرَسُولُ اللَّهِ ﷺ مِنْ إِنَاءٍ وَاحِدٍ  

"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.[1] 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 not paying attention to it." [1] Kaiysah:" Well-mannered when using the water with the man" (An-Nihayah) And the comments by Al-A'raj after the narration refer to its meaning.  

حَدَّثَنِي نَاعِمٌ مَوْلَى أُمِّ سَلَمَةَ ؓ أَنَّ أُمَّ سَلَمَةَ سُئِلَتْ أَتَغْتَسِلُ الْمَرْأَةُ مَعَ الرَّجُلِ قَالَتْ نَعَمْ إِذَا كَانَتْ كَيِّسَةً رَأَيْتُنِي وَرَسُولَ اللَّهِ ﷺ نَغْتَسِلُ مِنْ مِرْكَنٍ وَاحِدٍ نُفِيضُ عَلَى أَيْدِينَا حَتَّى نُنْقِيَهُمَا ثُمَّ نُفِيضَ عَلَيْهَا الْمَاءَ قَالَ الأَعْرَجُ لاَ تَذْكُرُ فَرْجًا وَلاَ تَبَالَهُ