Abu Hatim ar-Razi: Saduq, upright in Hadith, but he narrates the most from the weak and unknown narrators. He was at a level that if someone fabricated a Hadith and presented it to him, he would not understand it.
Abu Hatim ibn Hibban al-Busti: His Hadith is considered acceptable when he narrates from trustworthy and famous narrators.
Abu Dawud as-Sijistani: Trustworthy, he makes mistakes as people do. It was said: Is he a Haafidh (scholar who memorized a vast amount of Hadith)? He said: The Haafidh is Ahmad ibn Hanbal.
Abu Zur'a ad-Dimashqi: The Faqih (jurist) of the people of Damascus.
Ahmad ibn Shu'ayb an-Nasa'i: Saduq (trustworthy).
Ibn Hajar al-'Asqalani: Saduq, he makes mistakes. Once: Al-Bukhari narrated a few Hadiths from him.
Ad-Daraqutni: Trustworthy, he narrated some Munkar (rejected) Hadiths from weak narrators, but as for himself, he is trustworthy.
Adh-Dhahabi: The Haafidh, very trustworthy, but he narrates a lot from weak narrators.
Salih ibn Muhammad al-Jazari: There is nothing wrong with him, but he narrates from weak narrators.
Yahya ibn Ma'in: There is nothing wrong with him. Once: Intelligent. Once: Trustworthy when he narrates from known narrators. Once: Hisham ibn 'Ammar is more intelligent than him. From the narration of Mu'awiyah ibn Salih, who said: 'There is nothing wrong with al-Maskin if he narrates from known narrators.'
Ya'qub ibn Sufyan al-Faswi: Trustworthy.