Al-Ḥākim said: “He arrived in Nīshāpūr in 340 AH, and I wrote hadith from him. I also saw him in Bukhārā. When I reached Rayy in 367 AH I found him claiming descent and dictating to the audience that he was Muḥammad ibn ʿAbd Allāh, son of the ḥadith scholar Muḥammad ibn Ayyūb ibn Yaḥyā ibn al-Ḍurays. I took him aside, reproached him, and he abandoned the claim. Had that allegation become public in Rayy they would have harmed him, for Muḥammad ibn Ayyūb left no male heirs. We met again in 370 AH, and he had begun to narrate from ʿAlī ibn ʿAbd al-ʿAzīz and his contemporaries, whereas previously he had reported only from the Musnad compilations. May Allah have mercy on him.”

I (al-Dhahabī) say: Abū ʿAbd al-Raḥmān al-Sulamī transmits from him all manner of reprehensible reports and tales.

Among those who related from him are Abū ʿAbd Allāh ibn Bākawayh, Abū Nuʿaym, Abū Ḥāzim al-ʿAbdawiyy, and others.

He is not deemed trustworthy.

He died in 376 AH.

261 – Isḥāq ibn Saʿd, grandson of the ḥadith master al-Ḥasan al-Nasawī

He is Isḥāq ibn Saʿd ibn Sufyān ibn ʿĀmir al-Nasawī, Abū Yaʿqūb al-Shaybānī.

He heard hadith from his grandfather, from ʿAbd Allāh ibn Muḥammad ibn Sayyār al-Farhādānī, Muḥammad ibn al-Mujaddar, Muḥammad ibn Muḥammad al-Baghandī, Abū al-Qāsim al-Baghawī, and ʿAbd Allāh ibn Muḥammad ibn Shīrawayh.