Abu Ahmad ibn Adi al-Jurjani: Most of his Hadiths are unique narrations that he alone reported
Abu Bakr al-Bayhaqi: They spoke about him (criticized)
Abu Ja'far al-Tahawi: A man praised for his narration
Abu Ja'far al-'Uqayli: He narrated Hadith that is not corroborated
Abu Hatim al-Razi: Saduq (Truthful)
Abu Muhammad ibn Hazm al-Zahiri: Unknown
Ishaq ibn Rahawayh: A man of truth
Ibn Hajar al-'Asqalani: Ibn Hazm was not correct in declaring him unknown
al-Daraqutni: Not strong (in Hadith)
Muhammad ibn Isma'il al-Bukhari: Al-Salt mentioned that he suffered from some confusion (in his later years)