حَدَّثَنَا عَبْدُ اللَّهِ حَدَّثَنِي أَبِي ثَنَا سُفْيَانُ عَنْ عَاصِمٍ عَنْ أَبِي الْمُتَوَكِّلِ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ رَضِيَ اللَّهُ عَنْهُ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ: ((يَتَوَضَّأُ إِذَا جَامَعَ وَإِذَا أَرَادَ أَنْ يَرْجِعَ)) قَالَ سُفْيَانُ: أَبُو سَعِيدٍ أَدْرَكَ الْحَرَّةَ
It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: When a man wishes to return (to intercourse) after having done it once, he should perform ablution. Sufyan said: Sayyiduna Abu Sa'id witnessed the time of the Battle of Harrah, meaning he was alive at that time.