I performed Hajj with Ibn Masʿud , and saw him doing Rami of the big Jamra (Jamrat-ul-Aqaba) with seven small pebbles, keeping the Kaʿba 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. Messenger of Allah ﷺ ) stood."  

هَذَا مَقَامُ الَّذِي أُنْزِلَتْ عَلَيْهِ سُورَةُ الْبَقَرَةِ