This document provides details about the life and accomplishments of Hazrat Hamza, the uncle and foster brother of the Prophet Muhammad. It describes how Hazrat Hamza initially did not pay attention to Islam but embraced it after witnessing the Prophet being abused. From then on, he devoted himself fully to serving and defending Islam, displaying great courage and skill in battles like Badr and Uhud. He was martyred at Uhud after killing many infidels, and was deeply mourned, especially by the Prophet. Hazrat Hamza is regarded as the "Chief of Martyrs" for his valor and sacrifices in supporting the Prophet and spreading the message of Islam.