Musnad Abu Ya'la al-Mawsili 153:215

Ubayd Allah ibn Umar narrated to us, Hammad ibn Zayd narrated to us, Amr ibn Dinar narrated to us, he said: I heard Ibn Umar saying: The Messenger of Allah (peace be upon him) arrived and performed Tawaf around the House seven times, and he prayed two rak'ahs behind the Maqam (Station of Ibrahim), and he performed Sa'i between al-Safa and al-Marwah. "There has certainly been for you in the Messenger of Allah an excellent pattern."