"Men and women used to perform Wudu' together during the time of the Messenger of Allah (ﷺ)."
Sunan an-Nasa'i Book 2, Hadith 18
← Previous Hadith "While I was menstruating, I would nibble meat from a bone and the Messenger of Allah (ﷺ) would put his mouth where mine has been. And while I was menstruating, I would drink from a vessel and he would put his mouth where mine had been."

Sunan an-Nasa'i Book 2, Hadith 17 Next Hadith → It was narrated from Al-Hakam bin 'Amr that the Messenger of Allah (ﷺ) forbade a man from performing Wudu' with the leftovers of a woman's (water for) Wudu'.

Sunan an-Nasa'i Book 2, Hadith 19