Rib'i ibn Amir al-Tamimi (Arabic: ) was one of the Sahabah (companions) of Muhammad. Rib'i belongs to the Arabian tribe of Banu Tamim. He participated in the Siege of Damascus in 643 AD, and he witnessed the conquest of Iraq and the fall of the Sasanian Empire in 636, both of which took place under the rulership of Umar ibn al-Khaá¹Âá¹Âab, the second Rashidun Caliph.
In his encyclopedic history The Beginning and the End (al-Bidaya wa-l-Nihaya) (çÃÂèïçÃÂé ÃÂçÃÂÃÂÃÂçÃÂé), Ibn Kathër narrates a story that took place before the Battle of al-Qadisiyyah, one of Islam's greatest battles, which ended with the killing of the dynast of the Sasanian empire, Rostam.
Rib'i was sent as a messenger by Saÿd ibn Abë WaqqÃÂá¹£, the leader of the Muslim army in the Battle of al-Qadisiyyah, upon Rostam's request. A long conversation took place between Rib'i and Rostam in which Rib'i articulated his beliefs as a Muslim and why him and the Muslims were engaged in warfare with Rostam.
One important passage from the diologe was Rib'i's answer to Rostam question.