Abu Bakr (May Allah Be Pleased With Him)
Abu Bakr was a close friend and companion of Prophet Muhammad. He was the first adult male to embrace Islam and the first caliph after the Prophet's death.
Ridda Wars: Abu Bakr successfully led the Muslim community in a series of battles against rebel tribes who refused to pay the zakat after the Prophet's death.Compilation of the Quran: Under Abu Bakr's rule, the Quran was collected and compiled into a single volume.