Concept:The first migration to Abyssinia was led by a close relative of the Prophet Muhammad (SAW).Explanation:The Muslims facing persecution in Makkah were allowed to migrate to Abyssinia.The leader of this group of Muslim emigrants was Ja'far ibn Abi Talib, the cousin of the Prophet.He was chosen because of his wisdom and ability to speak on behalf of the migrants before the Negus.Therefore, Ali ibn Abi Talib, Amr ibn Al-As, and Uthman ibn Affan were not the leaders of this migration.Answer:Ja'far b. Abi Talib