Abu Hatim ibn Habban al-Busti: He used to make mistakes
Ahmad ibn Hanbal: Sahib Sunnah (Follower of the Prophet's tradition)
Ahmad ibn Shuayb al-Nasa'i: There is nothing wrong with him
Ahmad ibn Salih al-Jili: Thiqah (Trustworthy), 'Uffan used to criticize him
Ibn Hajar al-'Asqalani: Thiqah (Trustworthy), and once: One of the trustworthy narrators and the Imams relied on him
al-Dhahabi: Thiqah (Trustworthy)
'Uffan ibn Muslim al-Saffar: He criticized him
Muhammad ibn Sa'd Katb al-Waqidi: Thiqah (Trustworthy)
Yahya ibn Ma'in: Thiqah (Trustworthy)