(9) باب صِفَةِ غُسْلِ الْجَنَابَةِ
'Urwa has narrated it on the authority of 'A'isha that when Allah's Messenger (ﷺ) took a bath because of sexual intercourse, he first washed his hands before dipping one of them into the basin, and then performed ablu- tion as is done for prayer.
Reference: Sahih Muslim 316 d
In-book reference: Book 3, Hadith 43
USC-MSA web (English) reference(deprecated numbering scheme): Book 3, Hadith 619