'Uqba bin Al-Harith

Abdullah ibn Mas'ud (may Allah be pleased with him) was among the very first to embrace Islam in Mecca, doing so while still a young shepherd boy. His full name was Abdullah ibn Mas'ud ibn Ghafil al-Hudhali. He was so close to the Prophet ﷺ that he was permitted to enter the Prophet's quarters without prior permission, carried his sandals and prepared his water for ghusl, and was described as resembling the Prophet ﷺ in his walk and bearing. The Prophet ﷺ declared: 'Whoever wishes to recite the Quran as fresh as when it was revealed, let him recite it as Ibn Umm Abd recites it.' He was appointed by Umar ibn al-Khattab as a teacher and judge in Kufa, where he became the principal scholarly authority for the Iraqi tradition that later developed into the Hanafi school of jurisprudence. He narrated 848 hadiths and is recognized as one of the four Companions most authoritative on Quranic recitation and tafsir. He resisted any change to his own mushaf when the standard Uthmanic copy was compiled and remained firm on matters he was convinced about. He passed away in Medina around 32–33 AH.