(1) باب المياه
A man who accompanied the prophet (ﷺ) narrated:
Allah's Messenger (ﷺ) 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)]. (ES)
Reference (ES): Bulugh al-Maram 7 (ES)
In-book reference (ES): Book 1, Hadith 8 (ES)
English translation (ES): Book 1, Hadith 9 (ES)