What do you think if a man has intercourse with his wife but does not ejaculate? ʿUthmanؓ Said. He should do wudooʿ as for prayer and wash his private part. And ʿUthman ؓ said: I heard it from the Messenger of Allah ﷺ; I asked ‘Ali bin Abi Talib, az-Zubair bin al-ʿ Awwam, Talhah bin ʿUbaidullah and Ubayy bin Kaʿb about that, and they told him to do the same. (Using translation from Aḥmad 448)
عُثْمَانُ سَمِعْتُهُ مِنْ رَسُولِ اللَّهِ ﷺ قَالَ فَسَأَلْتُ بَعْدَ ذَلِكَ عَلِيَّ بْنَ أَبِي طَالِبٍ وَالزُّبَيْرَ بْنَ الْعَوَّامِ وَطَلْحَةَ بْنَ عُبَيْدِ اللَّهِ وَأُبَيَّ بْنَ كَعْبٍ فَقَالُوا مِثْلَ ذَلِكَ