Abu Ahmad ibn Adi al-Jurjani: Despite his weakness, his hadith is written down
Abu Ja'far al-'Uqayli: He mentioned a hadith for him and said, 'He is not followed'
Abu Hatim al-Razi: He is a denier of hadith, not strong
Abu Hatim ibn Hibban al-Busti: He mentioned him among the trustworthy and said: 'In the hadiths of his son, Ibrahim ibn Yahya, from him are munkar narrations.' And once he said: 'He is a strong denier of hadith, not to be used as evidence'
Abu Dawud al-Sijistani: He is nothing
Abu Isa al-Tirmidhi: He is weak in hadith
Abu Nasr ibn Makula: He mentioned him in al-Ikmal and said: 'He narrated from his father'
Abu Nu'aym al-Asbahani: There are munkar narrations in his hadith
Ahmad ibn Hanbal: I abandoned him. He used to narrate munkar hadiths from 'Ubaydullah.' And once: 'I came to him and wrote from him some things, then I saw him mixing up hadiths, so I abandoned him'
Ahmad ibn Shu'ayb al-Nasa'i: He is not trustworthy.' And once: 'Abandoned in hadith'
Ahmad ibn Salih al-Jili: Weak in hadith, and he used to exaggerate in Shi'ism
Ibn Hajar al-'Asqalani: Abandoned, and he was a Shi'ite
Al-Dhahabi: Weak
Muhammad ibn Isma'il al-Bukhari: There are munkar narrations in his hadith.' And once: 'Denier of hadith'
Muhammad ibn Sa'd, the scribe of al-Waqidi: Very weak
Muhammad ibn 'Abd Allah al-Makhrami: Weak
Muhammad ibn 'Abd Allah ibn Numayr: He is not among those whose hadith are written down, and he used to narrate hadiths from his father that have no basis
Yahya ibn Ma'in: Weak in hadith.' And once: 'He is nothing.' And once: 'His hadith is not written down'
Ya'qub ibn Sufyan al-Faswi: I heard our companions weakening them