Abu Ahmad ibn Adi al-Jurjani: Generally, what he narrates is not preserved
Abu Bishr al-Dulabi: He is not trustworthy
Abu Hatim al-Razi: He is not strong, he is a sheikh
Abu Hatim ibn Hibban al-Busti: He narrates things from trustworthy narrators that do not resemble the hadith of the trustworthy. I do not like to use him as an argument if he is alone
Abu Dawud al-Sijistani: Weak
Ahmad ibn Hanbal: He changed the name of Zuhair ibn Muawiyah from Saleh ibn Hayyan to Wasil ibn Hayyan
Ahmad ibn Shuayb al-Nasai: He is not trustworthy
Ahmad ibn Salih al-Jili: His hadith is permissible to write, but he is not strong
Ibrahim ibn Ishaq al-Harbi: He has rejected hadiths
Ibn Hajar al-Asqalani: Weak
Al-Daraqutni: He is not strong and he called him Zuhair ibn Muawiyah Wasil ibn Hayyan, and they were mistaken in that
Muhammad ibn Ismail al-Bukhari: He needs consideration
Yahya ibn Ma'in: Weak, and once: He is not like that, and once: He is nothing