Having returned from Hudaybiya, Nabi al-muhtaram (sall-Allahu ’alaihi wa sallam) wished for Islâm to spread all over the world and for people to be saved from the torment of Jahannam and attain true bliss. Because He had been sent as a mercy to all the universe. Therefore, He thought to send envoys to rulers from all around and invite them to Islâm.