Which Companion was a former slave of Abyssinian origin who became the first muezzin of Islam?
Q1. Which Companion was a former slave of Abyssinian origin who became the first muezzin of Islam?
Answer: Bilal ibn Rabah
Explanation: Bilal ibn Rabah, a freed Abyssinian slave tortured for his faith, was chosen by the Prophet as Islam's first muezzin due to his powerful voice and unwavering devotion.