Abu Hatim al-Razi: He was a Companion
Abu Hatim ibn Habban al-Busti: He was one of the Companions of the Tree
Ibn Hajar al-Asqalani: A Companion who pledged allegiance under the tree, and the Ma'qil canal in Basra is attributed to him
Al-Khatib al-Baghdadi: He had companionship and narration from the Prophet, peace and blessings of Allah be upon him
Muhammad ibn Ismail al-Bukhari: He was a Companion