I prepared bathing water for the Messenger of Allah ﷺ, and he bathed after going round to all his wives in a single night.
حدثنا علي بن محمد حدثنا وكيع عن صالح بن أبي الأخضر عن الزهري
وضعت لرسول الله ﷺ غسلا فاغتسل من جميع نسائه في ليلة
No references are available.
[Its chain is daif] This Salih is daif, though he can be used for corroboration, as stated in Taqrib*.