Thanks to his father’s solicitude, he was granted an ijāza (authorization to transmit ḥadīth) in the very year he was born. The two men who conferred it were Abū Bakr ibn Khalaf al-Shīrāzī and Abū Manṣūr al-Muqawmi, in 483 AH.

He heard ḥadīth from: his own father; Abū al-Fatḥ ʿAbdūs ibn ʿAbd Allāh; Makki ibn ʿAllān al-Sallār; Ḥamd ibn Naṣr al-Aʿmash; Abū Muḥammad al-Dūnī; Fayḍ ibn ʿAbd al-Raḥmān; and Abū Bakr Aḥmad ibn Muḥammad ibn Zanjawayh, the jurist of Zanjān—about whom he stated that he heard the Musnad of Imām Aḥmad from him in 500 AH. Al-Ḥusayn al-Fallākī also related to us, as did al-Qaṭīʿī, and he attended audition sessions in Baghdad.

Those who narrated from him include: his son Abū Muslim Aḥmad; Abū Sahl ʿAbd al-Salām ibn Fatha al-Sarfülī, who took from him “al-Alqāb” by al-Shīrāzī; and Abū Saʿd al-Samʿānī, who said (1): “He was a ḥadīth master, deeply versed in the discipline, perceptive, and well-grounded in literature—agreeable, light-hearted, constantly present in his mosque. He followed his father’s path in ḥadīth, audition, and pursuit of knowledge. He travelled with his father to Iṣfahān in 505 AH; I wrote from him. He gathered the chains of transmission for his father’s book al-Firdaws, arranging them in a remarkably fine order. I later saw the work in Marw in 556 AH: three large volumes, already completed, edited, and refined.”

ʿAbd al-Raḥīm al-Ḥājī stated: “Shahrdār died in the month of Rajab, 558 AH.”

Aḥmad ibn al-Muʾayyad the ascetic narrated to us; ʿAbd al-Salām ibn Fatha narrated to us in person in 618 AH; Abū Manṣūr Shahrdār ibn Shīrawayh al-Daylamī narrated to us in 554 AH; Abū Bakr Aḥmad ibn ʿUmar al-Bayyiʿ narrated to us; Ḥamīd ibn Maʾmūn narrated to us