Abu Hatim Al-Razi: He was a companion
Abu Hatim bin Habban Al-Busti: He saw the Prophet, peace and blessings be upon him, giving a sermon at Arafah
Ibn Hajar Al-Asqalani: A young companion
Al-Mizzi: He was a companion
Muhammad bin Ismail Al-Bukhari: He was a companion
Yahya bin Ma'in: Trustworthy