Abu Hatim al-Razi: He was a Companion
Abu Hatim ibn Hibban al-Busti: He was a Companion
Abu Zur'ah al-Razi: Companion
Abu 'Isa al-Tirmidhi: Companion
Ibn Hajar al-'Asqalani: Companion with few narrations
al-Daraqutni: Unknown
al-Mizzi: He was a Companion
Abd al-Baqi ibn Qan' al-Baghdadi: Companion
Muhammad ibn Isma'il al-Bukhari: He was a Companion