His birth took place in Shawwāl of 465 AH.
He studied under ʿAbd al-Wāḥid ibn ʿAbd al-Raḥmān al-Warkī (1), the long-lived centenarian; Abū Bakr Muḥammad ibn Khawāhirzādah; the judge Abū al-Khaṭṭāb al-Ṭabarī; Muḥammad ibn Aḥmad ibn Abī Sahl, the jurist; and several others.
He alone transmitted the reports of Imām Abū al-Muẓaffar ʿAbd al-Karīm al-Andaqī (2).
Those who narrated from him include Abū Saʿd al-Samʿānī, his son Abū al-Muẓaffar ʿAbd al-Raḥīm, and others.
When the time came for transmitters to learn from him, the Tatars overran the region with the sword, and the door of narration in Khurāsān—both its farthest and its nearest parts—was shut.
Abū Saʿd said: “He is a virtuous imam—pious, chaste, pure, devout, content with little, trustworthy, righteous.”
He died on the ninth of Shawwāl, 552 AH, and multitudes accompanied his funeral bier.
229 – Ibn al-Ṣaffār, ʿUmar ibn Aḥmad ibn Manṣūr al-Naysābūrī *
The imam, the erudite scholar, the exemplar: Abū Ḥafṣ ʿUmar ibn Aḥmad ibn Manṣūr, son of Shaykh Abū Bakr Muḥammad ibn al-Qāsim ibn Ḥabīb al-Naysābūrī, the Shāfiʿī, and the husband of the daughter of Imām Abū Naṣr al-Qushayrī (3).