صَحِيحُ مُسْلِمٍ
Sahih Muslim 321 b
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
وَحَدَّثَنِي مُحَمَّدُ بْنُ رَافِعٍ، حَدَّثَنَا شَبَابَةُ، حَدَّثَنَا لَيْثٌ، عَنْ يَزِيدَ، عَنْ عِرَاكٍ، عَنْ حَفْصَةَ بِنْتِ عَبْدِ الرَّحْمَنِ بْنِ أَبِي بَكْرٍ، - وَكَانَتْ تَحْتَ الْمُنْذِرِ بْنِ الزُّبَيْرِ - أَنَّ عَائِشَةَ، أَخْبَرَتْهَا أَنَّهَا، كَانَتْ تَغْتَسِلُ هِيَ وَالنَّبِيُّ صلى الله عليه وسلم فِي إِنَاءٍ وَاحِدٍ يَسَعُ ثَلاَثَةَ أَمْدَادٍ أَوْ قَرِيبًا مِنْ ذَلِكَ .
Hafsa, daughter of 'Abd al-Rahman b. Abu Bakr, reported that 'A'isha narrated to her that she and the Messenger of Allah (ﷺ) took a bath from the same vessel which contained water equal to three Mudds or thereabout.
Sahih Muslim, 321 bSahihصحيح