Abu Hatim ibn Hibban al-Busti: A strong denier of Hadith, he narrates from Thawr what is not from his Hadith, it is not permissible to use him as an argument at all
Abu Saeed ibn Amr al-Naqash: He narrated fabricated Hadiths
Abu Abdullah al-Hakim al-Naysaburi: He narrated fabricated Hadiths