وَعَنْ أَبِي سَعِيدٍ اَلْخُدْرِيِّ رضى الله عنه
قَالَ: قَالَ رَسُولُ اَللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ -«إِذَا أَتَى أَحَدُكُمْ أَهْلَهُ، ثُمَّ أَرَادَ أَنْ يَعُودَ فَلْيَتَوَضَّأْ بَيْنَهُمَا وُضُوءًا»
The Messenger of Allah (sallallahu alayhi wa sallam) said: “If one of you has sexual intercourse with his wife and wishes to repeat he should perform ablution between them”.
Bulugh al-Maram 141, Book 1, The Book of Purification, Hadith 141. 1 min read