Abu Ahmad ibn Adi al-Jurjani: Truthful, trustworthy, and his hadiths are upright, and I hope there is no harm in him
Abu Hatim al-Razi: He is not strong, his hadith is written
Abu Hatim ibn Hibban al-Busti: He makes mistakes
Abu Dawud al-Sijistani: Thiqah (trustworthy)
Abu Zur'ah al-Razi: Shaykh, not strong
Abu Isa al-Tirmidhi: Thiqah (trustworthy) in hadith
Ahmad ibn Hanbal: He narrates munkar (rejected) hadiths
Ahmad ibn Shu'ayb al-Nasa'i: There is no harm in him, and once: He is not that strong
Ahmad ibn Salih al-Jili: Thiqah (trustworthy)
Ibn Hajar al-Asqalani: Thiqah (trustworthy), he makes a few mistakes, and once: He rejected one hadith from him, and said Ahmad: He narrated munkar (rejected) hadiths, I said the Imams all relied on him and Ahmad and others apply munkar to the individual rejected hadiths
Al-Dhahabi: Truthful
Amr ibn Ali al-Fallas: I have not heard Yahya nor Abd al-Rahman narrate from Sufyan from Burayd ibn Abdullah ibn Abi Burdah anything at all
Muhammad ibn Isma'il al-Bukhari: He is not that strong
Authors of Tahrir Taqrib al-Tahdhib: Truthful, good in hadith, and everyone makes a few mistakes so there is no point in mentioning them
Yahya ibn Ma'in: Thiqah (trustworthy), and he said once: There is no harm in him