Amr bin 'Ali bin Bahr al-Bahli عمرو بن علي بن بحر الباهلي · The Book of Water

"I poured some water for him for Wudu', and a cat came and drank from it, so he tilted the vessel for it to drink." Kabshah said: "He saw me looking at him and said: 'Are you surprised, O daughter of my brother?' I said: 'Yes.' He said: 'The Messenger of Allah (ﷺ) said: 'They are not impure, rather they are among the males and females (animals) who go around among you."

"Men and women used to perform Wudu' together during the time of the Messenger of Allah (ﷺ)."

It was narrated from 'Aishah that she used to perform Ghusl with the Messenger of Allah (ﷺ) from a single vessel.