Abu Ahmad ibn 'Adi al-Jurjani: They criticize him for things he was prompted to say. His only affliction was that he used to accept what was dictated to him. It is said: He had a scribe who used to dictate to him from suspended narrations, which he would then elevate, and from mursal narrations, which he would connect or alter by changing the narrators.
Abu Hatim al-Razi: Lenient
Abu Hatim ibn Hibban al-Busti: A virtuous and trustworthy sheikh, except that he was afflicted by his scribe.
Abu Dawud al-Sijistani: He abandoned narrating from him.
Abu Zur'a al-Razi: He should not be relied upon. He was accused of lying. From the narration of Bakr ibn Muqbil, he said: There are three people who have no favoritism with us, and he mentioned him among them.
Ahmad ibn Hanbal: I know nothing but good about him.
Ahmad ibn Shu'ayb al-Nasa'i: He is not trustworthy. And once: He is nothing. And he once said to Ishaq ibn Ibrahim: Do not narrate from Sufyan ibn Wakee'.
Ibn Hajar al-'Asqalani: Trustworthy, but he was afflicted by his scribe, who introduced into his narrations what was not his. He was advised, but he did not accept, so his narrations were dropped. He was himself trustworthy, but he was afflicted by his scribe.
Al-Daraqutni: They were lenient in their criticism of him.
Al-Dhahabi: Weak
Muhammad ibn Isma'il al-Bukhari: They criticize him for things he was prompted to say.
Authors of Tahrir Taqrib al-Tahdhib: Weak