Bulugh al-Maram, Book 1, Hadith 125 (English) ⓘ
Narrated Abu Sa’id Al-Khudri (rad): Allah’s Messenger said: “If one of you has sexual intercourse with his wife and wishes to repeat he should perform ablution between them” [Reported by Muslim].
وَعَنْ أَبِي سَعِيدٍ اَلْخُدْرِيِّ - رضى الله عنه - قَالَ: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ إِذَا أَتَى أَحَدُكُمْ أَهْلَهُ, ثُمَّ أَرَادَ أَنْ يَعُودَ فَلْيَتَوَضَّأْ بَيْنَهُمَا وُضُوءًا } رَوَاهُ مُسْلِم ٌ (142). 3 - صحيح. رواه مسلم (308).
also referenced under: Book 1, Hadith 141 (In-Book)