Battle of Yamama Against Musaylima

The Battle of Yamama was fought in central Arabia in late 632, during the Ridda wars that followed the Prophet's death. A Rashidun army under Khalid ibn al-Walid faced the forces of Musaylima, a rival who claimed prophecy. Musaylima was killed in the battle. Many Companions also died, and the traditional account links these losses to the later collection of the Quran.