 Despite this incident, it seems that Heraclius was more concerned with the current rift between the various Christian churches within his empire, and as a result did not convert to Islam.The letter inviting the Negus to Islam had been sent by Amr bin Omayah ad-Damari, although it is not known if the letter had been sent with Ja'far on migration to Abyssinia or at a later date following the Treaty of Hudaibiyya.According to Hamidullah, the former may be more likely.