The Prophet (ﷺ) and I used to take a bath from a single pot of water and our hands used to go in the pot after each other in turn.
Sahih al-Bukhari Book 5, Hadith 14
← Previous Hadith The Prophet (ﷺ) took the bath of Janaba. (sexual relation or wet dream). He first cleaned his private parts with his hand, and then rubbed it (that hand) on the wall (earth) and washed it. Then he performed ablution like that for the prayer, and after the bath he washed his feet.

Sahih al-Bukhari Book 5, Hadith 13 Next Hadith → Whenever Allah's Messenger (ﷺ) took a bath of Janaba, he washed his hands first.

Sahih al-Bukhari Book 5, Hadith 15