Abdullah Ibn Masood (RA) belonged to the tribe of Banu Huzail, and people called him 'Ibn Umm Abd'. His real name was Abdullah and his father's name was Masood.
Abdullah Ibn Masood (RA) was best at reciting and understanding the Quran among the companions. He was considered as the most knowledgeable on the Shari'ah. He was the first man to recite aloud the words of the Quran in front of the Quraish.
Abdullah Ibn Masood (RA) did Hijrah three times: twice to Ethiopia and once to Madinah. The Caliph Umar (RA) sent Abdullah Ibn Masood (RA) to Kufa to educate the people and to take charge of the Bait-ul-Maal.