Sahih Bukhari, Chapter: Prayers (Salat)

I asked Ibn 'Umar, "Can a person who has performed the Tawaf around the Ka'ba for 'Umra but has not performed the (Sa'i) Tawaf of Safa and Marwa, have a sexual relation with his wife?" Ibn 'Umar replied "When the Prophet reached Mecca he performed the Tawaf around the Ka'ba (circumambulated it seven times) and offered a two-Rak'at prayer (at the place) behind the station (of Abraham) and then performed the Tawaf (Sa'i) of Safa and Marwa, and verily in Allah's Apostle you have a good example." Then we put the same question to Jabir bin 'Abdullah and he too replied, "He should not go near his wife (for sexual relation) till he has finished the Tawaf of Safa and Marwa."