Name: Muaz bin Jabal
Title: Abu Abdillah Al Ansaari Al Khazraji
He was one of the seventy Ansaar companions present at the second Bay'atul Aqabah (pledge taken at a place called Aqabah). He participated in the Battle of Badr and all the subsequent expeditions. Rasulullah (Sallallahu Alaihi Wasallam) sent him to Yemen as a judge and a teacher.
Hazrat Umar, ibn Abbas, Ibn Umar and others (R) narrate Hadith from him. He accepted Islam at the approximate age of 18. He was appointed as the governor of Syria by Hazrat Umar (R) after Hazrat Abu Ubaydah (R).
He passed away in the plague of Amwaas in 18 AH at the approximate age of 33.
Virtues
Most knowledgeable in terms of Halaal and Haraam
Hazrat Anas bin Malik (R) narrates that Rasulullah (Sallallahu Alaihi Wasallam) said, “… The most knowledgeable of them with regards to Halaal and Haraam is Muaz bin Jabal (R) …” (Tirmizi)
An excellent man
Hazrat Abu Hurayrah (R) narrates that Rasulullah (Sallallahu Alaihi Wasallam) said, “…How excellent a man is Muaz bin Jabal (R)…” (Tirmizi)
Glad tiding of love
Hazrat Muaz (R) narrates that Rasulullah (Sallallahu Alaihi Wasallam) held his hand and said, “O Muaz! By Allah, verily I love you. By Allah, verily I love you…” (Abu Dawood)