´It was narrated that 'Ali said:` "The Prophet and his wife would take a bath from one vessel, but neither of them would have a bath with the leftover water of the other." (Daif)
Explanation & Benefits
Maulana Ataullah Sajid
Commentary:
This narration is weak in its chain of transmission.
The correct view is that husband and wife may perform ritual bath (ghusl) together, and they may also perform ritual bath using the water left over by each other.
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 375