 Many prominent scholars and leaders were his students, including Muhammad Ali and Sher Ali, who were themselves Quranic commentators and among the earliest translators of the Quran into English, and Mirza Bashir-ud-Din Mahmud who succeeded him as caliph.Noor-ud-Din's sermons and other discourses have been collected into a four volume exegetical work called "Haqaiq al-Furqan".Hakeem Noor-ud-Din was the youngest of seven brothers and two sisters and the 34th direct lineal male descent of Umar Ibn al-Khattab, the second caliph of Islam .