It is narrated from Salamah bin Akwa’ (may Allah be pleased with him) that I pledged allegiance to the Messenger of Allah (peace and blessings be upon him) (at Hudaybiyyah along with the other people), but then the Messenger of Allah (peace and blessings be upon him) said:“O son of Akwa’! Will you not pledge allegiance?”I said: O Messenger of Allah! I have already pledged allegiance to you. The Messenger of Allah (peace and blessings be upon him) said:“Do it again.”I said: Upon what should I pledge allegiance, O Messenger of Allah? The Messenger of Allah (peace and blessings be upon him) said:“Upon death.”