Al-Zubayr ibn al-Awwam ibn Khuwaylid al-Asadi (Arabic: الزُّبَيْر بْن الْعَوَّام بْن خُوَيْلِد الأَسَدِيّ, romanized: al-Zubayr ibn al-ʿAwwām ibn Khuwaylid al-ʾAsadī; c. 594–656) was an Arab Muslim commander in the service of the Islamic prophet Muhammad and caliphs Abu Bakr (r. 632–634) and Umar (r. 634–644) who played a leading role in the Ridda wars against rebel tribes in Arabia in 632–633 and later participated in early Muslim conquests of Sassanid Persia in 633–634, Byzantine Syria in 634–638, and the Exarchate of Africa in 639–643.
An early convert to Islam, Zubayr was a commander in the Battle of Badr in 624, in which the latter was instrumental in defeating the opponent forces of the Quraysh. He participated in almost all of the early Muslim battles and expeditions under Muhammad. In the Battle of the Trench, due to his military service, Muhammad bestowed the title Hawari Rasul Allah ('Disciple of Messenger of God') upon him. After Muhammad's death, Zubayr was appointed as a commander in the Ridda Wars by caliph Abu Bakr. He was involved in the defense of Medina and Battle of Yamama. During Umar's reign, Zubayr served in the Muslim conquests of Egypt, Levant, Persia, Sudan, and Tripolitania.