Abu-Manneh, Butrus. “The Naqshbandiyya-Mujaddidiyya in the Ottoman Lands in the Early 19th Century.” Die Welt Des Islams, vol. 22, no. 1/4, 1982, pp. 1–36. JSTOR, https://www.jstor.org/stable/1569796
Page 3: “Diya' al-Din Khalid was born in Qaradagh, a town in the district of Shahrizur in Iraqi-Kurdistan. His family belonged to the Jaf tribe that claimed descent from the 3rd Caliph 'Uthman. Hence the attribution al-'Uthmani is sometimes added to his name.”
Page 4: “After such a preparation, Khalid started to teach in Sulaimaniyya which was the seat of the Baban Princes. He occupied the post of his teacher, 'Abd al-Karim al-Barzinji at the death of the latter by plague (1213/1798).”
