Abu Hatim ibn Hibban al-Busti: He was a Companion
Abu Nasr ibn Makula: He narrated from the Prophet, peace and blessings be upon him
Ibn Hajar al-'Asqalani: A Companion, he witnessed Uhud and the battles after it and was martyred on the Day of the Bridge
Muhammad ibn Isma'il al-Bukhari: He was a Companion