A man who accompanied the prophet ( صلی اللہ علیہ وسلم ) narrated: Allah’s Messenger ( صلی اللہ علیہ وسلم ) forbade a women to bathe with the water left over by a man and that a man should not bathe with the water left over by a woman (but instead) they should both take scoopfuls of the water together. [Reported by Abu Da’ud and An-Nasa’i and its chain of narrators is Sahih (authentic)] .