The Rites of Hajj (Kitab Al-Manasik Wa'l-Hajj)
Dawud :: Book 10 : Hadith 1973
Narrated Aisha, Ummul Mu'minin:
The Apostle of Allah (peace_be_upon_him) said: When one of you throws pebbles at the last jamrah (Jamrat al-Aqabah), everything becomes lawful for him except women (sexual intercourse).