The Prophet ﷺ said, "When one of you has intercourse with his wife and then wishes to return to her, let him perform ablution between the two acts."
حدثنا هناد حدثنا حفص بن غياث عن عاصم الأحول عن أبي المتوكل
عن النبي ﷺ قال إذا أتى أحدكم أهله ثم أراد أن يعود فليتوضأ بينهما وضوءا
Muslim also recorded it in the chapter on menstruation, section on the permissibility of a sexually impure person sleeping and the recommendation of wudu for him, etc., hadith 308, from the hadith of Hafs bin Ghiyath with this same chain, the hadith of Umar [I did not find it with this wording there, there is another hadith from Umar recorded by Bukhari, hadith 287, and Muslim, hadith 306, and others].