Sunan an-Nasa'i

Sunan an-Nasa'i 264

Having Intercourse With Women Before Performing Ghusl
Arabic hadith text
أَخْبَرَنَا مُحَمَّدُ بْنُ عُبَيْدٍ، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ، قَالَ أَنْبَأَنَا مَعْمَرٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَيَطُوفُ عَلَى نِسَائِهِ فِي غُسْلٍ وَاحِدٍ ‏.‏
Translation

It was narrated from Anas bin Malik that the Messenger of Allah (ﷺ) went around all his wives and only performed Ghusl once.