He heard ḥadith from Ibn Bilāl, Muḥammad ibn al-Ḥusayn al-Qaṭṭān, Ibn Quhiyār, ʿAmr ibn ʿAbd Allāh al-Baṣrī, ʿAbd Allāh ibn Yaʿqūb al-Karmānī, Abū Ṭāhir al-Muḥammadābādī, and a number of others.
Those who narrated from him include Abū ʿAbd Allāh al-Ḥākim and Aḥmad ibn ʿAbd al-Raḥīm al-Ismāʿīlī.
He died in 392 AH(1).

22 – Jaysh ibn Muḥammad ibn Ṣamṣāmah, Abū al-Fatḥ al-Maghribī
The great amir, deputy governor of Damascus, Abū al-Fatḥ al-Maghribī.
He was appointed over the city on behalf of his maternal uncle, the amir Abū Maḥmūd al-Kutāmī, in 363 AH. After his uncle’s death in 370 AH he ruled it independently, was dismissed two years later, and then returned to office in 389 AH.

He was oppressive, tyrannical, a shedder of blood, given to confiscation, and of corrupt doctrine; the people implored Allah against him until he died of leprosy.

Jaysh had come to Syria with an army and encamped at Ramla. The provincial deputies of Syria hastened to serve him, whereupon he arrested the amir Sulaymān ibn Falāḥ and sent a detachment to besiege Tyre because its people had rebelled and placed ʿAllāqah the sailor in command. ʿAllāqah sought aid from the Byzantines, and Emperor Basil sent him reinforcements.