صَحِيحُ مُسْلِمٍ
Sahih Muslim 324
The Book of Menstruation
The amount of water with which it is recommended to perform ghusl in the case of janabah; a man and woman washing from a single vessel; one of them washing with the left-over water of the other
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا مُعَاذُ بْنُ هِشَامٍ، قَالَ حَدَّثَنِي أَبِي، عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ، حَدَّثَنَا أَبُو سَلَمَةَ بْنُ عَبْدِ الرَّحْمَنِ، أَنَّ زَيْنَبَ بِنْتَ أُمِّ سَلَمَةَ، حَدَّثَتْهُ أَنَّ أُمَّ سَلَمَةَ حَدَّثَتْهَا قَالَتْ، كَانَتْ هِيَ وَرَسُولُ اللَّهِ صلى الله عليه وسلم يَغْتَسِلاَنِ فِي الإِنَاءِ الْوَاحِدِ مِنَ الْجَنَابَةِ .
Zainab bint Umm Salama (the wife of the Prophet) reported that Umm Salama and the Messenger of Allah (ﷺ) took a bath from the same vessel.
Sahih Muslim, 324Sahihصحيح