Abu Ahmad ibn Adi al-Jurjani: Most of his hadiths are strange and rarely agreed upon by the trustworthy narrators.
Abu Bakr al-Bayhaqi: Weak
Abu Hatim al-Razi: Weak in Hadith, his ways were like thieves, they took his belongings and mixed them up.
Abu Hatim ibn Hibban al-Basti: He was among the best people of al-Sham, but he had a bad memory, he would narrate a hadith, then narrate it differently, and this happened frequently, until he deserved to be abandoned.
Abu Dawud al-Sijistani: His jewelry was stolen, so he pretended to be insane.
Abu Zur'a al-Razi: Weak, rejected in Hadith.
Ahmad ibn Hanbal: Weak, and once: He is nothing.
Ahmad ibn Shu'ayb al-Nasa'i: Weak
Ibrahim ibn Ya'qub al-Jawzajani: Not strong
Ibn Hajar al-'Asqalani: Weak and his house was robbed, so his narrations got mixed up.
al-Daraqutni: Abandoned, and once: Weak
al-Dhahabi: They weakened him, but he had knowledge and religiosity.
Dahim al-Dimashqi: There are some issues with his hadiths.
Isa ibn Yunus al-Sabi'i: He did not approve of him.
Muhammad ibn Sa'd Katb al-Waqidi: He was a prolific narrator but weak.
Yahya ibn Ma'in: He weakened him, and in a narration by Ibn Mahriz: They claimed that he was not all that bad.
Yazid ibn Harun al-Aili: He was one of the worshipping and devout people.
Ya'qub ibn Shaiba al-Sadusi: Trustworthy