Abu Hatim al-Razi: He was a companion of the Prophet
Abu Hatim ibn Hibban al-Busti: He dined with the Prophet, peace and blessings be upon him, and with them was Abu Ubaydah ibn al-Jarrah, and it was said: The name of Abu Juma'a is Habib ibn Siba', and it is said: His name is Junayd, and once: He said one of the worshippers of the followers saw a group of the Companions
Ibn Hajar al-'Asqalani: Sahabi