152 – 246 AH / 769/70 – 860/61 CE No. 6 in the chain from the Prophet ﷺ العراق
Abu Umar Hafs ibn Umar al-Duri, named after al-Dura in Baghdad, was a leading reader and grammarian who transmitted two of the canonical readings. He studied with Isma'il ibn Ja'far (transmitter of Nafi') among others; Ahmad ibn Farah and Ahmad ibn Shaykh al-Mutawwi'i took the readings from him, and Ibn Majah narrated from him. He settled in Samarra and died there.
Each route above this person as the published certificates write it, with its own number; the smallest number is the highest chain.
no. 6 from the Prophet ﷺ · through الشيخ أبي محمد يحيى بن المبارك البصري · Asim by Hafs and Shu'ba · on one certificate
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