Sunan Ibn Majah, Book 1, Hadith 406 (In-Book) ⓘ
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)
حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ إِسْرَائِيلَ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْحَارِثِ، عَنْ عَلِيٍّ، قَالَ كَانَ النَّبِيُّ ـ صلى الله عليه وسلم ـ وَأَهْلُهُ يَغْتَسِلُونَ مِنْ إِنَاءٍ وَاحِدٍ وَلاَ يَغْتَسِلُ أَحَدُهُمَا بِفَضْلِ صَاحِبِهِ .
also referenced under: Hadith 375 (Reference) & Volume 1, Book 1, Hadith 375 (DarusSalam)