Abu Hatim al-Razi: He was a companion
Abu Hatim ibn Hibban al-Busti: The Prophet (peace and blessings of Allah be upon him) said to him: 'Free a slave'
Ibn Hajar al-Asqalani: Companion
al-Dhahabi: Companion
al-Mizzi: He was a companion
Muhammad ibn Ismail al-Bukhari: He was a companion but his hadith is not considered sound