Who is the noble Companion who was titled "Amir al-Hajj"?

The Prophet, peace and blessings be upon him, appointed Attab bin Asid as the leader of the Hajj after the conquest of Mecca in the eighth year (AH), then Abu Bakr Al-Siddiq in the ninth year, and then the Prophet's Farewell Hajj took place in the tenth year. None of the aforementioned Companions were widely known by the title "Amir al-Hajj" (Leader of the Hajj). If anyone were to be given this title, it would more appropriately be Abu Bakr, as he was sent from Medina specifically for this purpose.