Abu Hatim al-Razi: A Shaikh who writes down his hadith but is not cited as an authority
Abu Hatim ibn Hibban al-Busti: He used to make mistakes
Abu Hafs Umar ibn Shahin: He declared him trustworthy
Ahmad ibn Hanbal: Trustworthy
Ahmad ibn Shuayb al-Nasa'i: Trustworthy
Ibn Hajar al-Asqalani: Truthful
Al-Dhahabi: He is not an authority