'GHUSL', or ablution/bath/washing is required everytime a muslim has sex, but here as this verse suggests, this was not applicable to the prophet.... ------------------------------ Sunaan Abu Dawud: Book 1, Number 0228: Narrated Aisha, Ummul Mu'minin:
The Apostle of Allah (peace_be_upon_him) would sleep while he was sexually defiled without touching water.