Abu Bakr al-Barqani: He was a man of strange views, and his Shiite inclination was well-known. I have not heard anything but good about him.
Abu 'Abd Allah al-Hakim al-Naysaburi: He changed in his understanding of Hadith.
Abu 'Ali al-Hafiz al-Naysaburi: I haven't seen anyone among our companions who has a better memory than him.
Abu 'Ali al-Mu'addal: He used to narrate the texts with their exact wording, and he was an Imam in the knowledge of the defects of Hadith and the trustworthy narrators.
Ibn 'Asakir al-Dimashqi: He was vast in narration and memorization.
al-Khatib al-Baghdadi: He was one of the praised Hadith scholars, and he had many strange views. His Shiite inclination was well-known.
al-Daraqutni: A Shiite who mixed things up, changed in his understanding of Hadiths, and narrated through chains of transmission that he had no origin in.
al-Dhahabi: One of the Imams of this field in Baghdad, however, he was a corrupt man of loose morals, with strange views, and he was a Shiite. And once: he was famous and precise, but he was of loose morals and corrupt.
Abd al-Hayy ibn al-'Imad al-Hanbali: He was a prolific memorizer and authored books, and he was unparalleled in his memorization.
Utbah ibn 'Ali: He became associated with a group of objectionable speakers, so he fell in the estimation of many Hadith scholars.
Ali ibn al-Muhsin al-Tanukhi: We have not seen anyone with a better memory than him.
Yahya ibn 'Abd Allah ibn Bakir: He had Hadiths that he did not err in their chains of transmission.