Sunan an-Nasa'i
The Book of Water
كتاب المياه
Chapter 12: The Concession Regarding The Leftovers Of One Who Is Junub
الرُّخْصَةِ فِي فَضْلِ الْجُنُبِ
Translation
It was narrated from 'Aishah that she used to perform Ghusl with the Messenger of Allah (ﷺ) from a single vessel.
Chapter 13: How Much Water Is Sufficient For A Person To Use For Wudu' And Ghusl
الْقَدْرِ الَّذِي يَكْتَفِي بِهِ الإِنْسَانُ مِنَ الْمَاءِ لِلْوُضُوءِ وَالْغُسْلِ
Translation
It was narrated that 'Abdullah bin Jabr said
"I heard Anas bin Malik say: 'The Messenger of Allah (ﷺ) used to perform Wudu' with a Makkuk (cup) and Ghusl with five Makkuks (cups).'"
Translation
It was narrated from 'Aishah that the Messenger of Allah (ﷺ) used to perform Ghusl with a Mudd and Ghusl with approximately a Sa'.
Translation
It was narrated that 'Aishah said
"The Messenger of Allah (ﷺ) used to perform Ghusl with a Mudd and Ghusl with a Sa'."