Sayyiduna Jabir (may Allah be pleased with him) narrates that during the blessed era of the Messenger of Allah (peace be upon him), we used to perform Hajj Tamattu'. In the narration of Janab Bundar, it is mentioned that we performed Hajj Tamattu' with the Messenger of Allah (peace be upon him), and we would sacrifice one cow on behalf of seven people. We, seven men, would share in it.