Muhammad had attended thirty-five shipments, according to some, according to forty-eight others. Muhammad had sent eight ambassadors to eight kings or governors, to call to Allah.
* Governor of the Copts, Moqauqas;
* The governor of Syria, Harith;
* Prince of Oman, Jafar bin Djolonda;
* Prince of Yemen, Haudsa;
* Governor of Bahrain, Al Ala bin al Hadhrami;
* The Negus, or king of Abyssinia;
* Of the Byzantine emperor Heraclius;
* King of Persia, Khosrow II.
The letter would have contained: "In the name of Allah the merciful and compassionate. Say: "O human, I am the apostle of Allah sent to you all, one who possesses the heavens and the earth. There is no god but him, who gives life and causes death, etc.. The letter ended with "Hi to those who follow the right path. Put yourself in the shelter of God's punishment if you do not do it, well, I've sent this message! .
The account of the response of Christians who have defended the troops face Mohammed Meccans was raised by tradition. Muhammad had sought refuge for some of the Muslims in Abyssinia Ethiopian Christians in after suffering the displeasure of the Meccans. The Ethiopian king had agreed to help the group of refugees after checking the contents of the letter of the Koran and Mohammed.
Mahomet found refuge among the people of Yathrib after leaving Mecca. He was seeking the support of Jews.
Source : http://fr.wikipedia.org/wiki/Mahomet