Sahih Muslim , Book 3, Hadith 629 (USC-MSA) ⓘ
'A'isha reported: I and the Messenger took a bath from the same vessel and our hands alternated into it in the state that we had had sexual intercourse.
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ بْنِ قَعْنَبٍ، قَالَ حَدَّثَنَا أَفْلَحُ بْنُ حُمَيْدٍ، عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ، عَنْ عَائِشَةَ، قَالَتْ كُنْتُ أَغْتَسِلُ أَنَا وَرَسُولُ اللَّهِ، صلى الله عليه وسلم مِنْ إِنَاءٍ وَاحِدٍ تَخْتَلِفُ أَيْدِينَا فِيهِ مِنَ الْجَنَابَةِ .
also referenced under: Book 3, Hadith 53 (In-Book) & Hadith 321 (Reference)