Narrated Zaid bin Khalid Al-Juhani: I asked `Uthman bin `Affan about a man who engaged in the sexual intercourse with his wife but did not discharge. `Uthman replied, He should perform ablution like that for the prayer after washing his private parts. `Uthman added, I heard that from Allah's Apostle. I asked `Ali bin Abi Talib, Az- Zubair bin Al-`Awwam, Talha bin 'Ubaidullah and Ubai bin Ka`b and a gave the same reply. (Abu Aiyub said that he had heard that from Allah's Apostle ) (This order was canceled later on so one has to take a bath. See, Hadith No. 180).