Abu Hatim al-Razi: He was a Companion
Abu Hatim ibn Hibban al-Busti: He was from the early emigrants
Ibn Hajar al-'Asqalani: He was a Companion from the first emigrants, he migrated in both migrations and witnessed the battles and was appointed as the treasurer by Umar
al-Mizzi: He witnessed Badr
Muhammad ibn Isma'il al-Bukhari: He was a Companion