Sahih Bukhari Volume 2, Book 26, Hadith Number 805.

Narated By ‘Abdur-Rahman bin Yazid : I performed Hajj with Ibn Masud , and saw him doing Rami of the big Jamra (Jamrat-ul-Aqaba) with seven small pebbles, keeping the Ka’ba on his left side and Mina on his right. He then said, “This is the place where the one on whom Surat-al-Baqara was revealed (i.e. Allah’s Apostle) stood.”