Sunan Ibn Majah 374
سنن ابن ماجه#374SahihIt was narrated that `Abdullah bin Sarjis said:"The Messenger of Allah forbade men to perform ablution with the water left over by a woman, and women to perform ablution with water left over by a man, however both (spouses) may start to perform their ablutions at the same time." Abu `Abdullah Ibn Majah said: "The first (narration) is correct, and the second (narration) is Wahm (an error)." Another chain with similar wording
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 1:108