MU’AZ IBN JABAL معاذ بن جبل
One of the most famous of the “Companions” He was of the Banu Khazraj, and was only twenty years of age at the battle of Badr. Being well skilled in the Qur’an, he was left at Makkah to instruct the people in the principles of Islam. He was also sent as tin head of a hand of collectors of taxes to south Arabia, and became Qazi of al-Yaman. After Muhammad’s death, he became a leading person in the counsels of Abu Bakr and ‘Umar, and was placed in charge of Syria by the latter Khalifah. He died at Ta’un ‘Amawas.
Based on Hughes, Dictionary of Islam