Abu Dawud
The Rites of Hajj
Book Number: 004 / Hadith Number: 1973
Narated By 'Aisha, Ummul Mu'minin : The Apostle of Allah (pbuh) said: When one of you throws pebbles at the last jamrah (Jamrat al-Aqabah), everything becomes lawful for him except women (sexual intercourse).