Islamic rulers are leaders who govern according to the principles of Islam. They often hold titles such as caliph, sultan, or emir, and their authority is typically derived from both political and religious sources. These rulers play a crucial role in maintaining Sharia, or Islamic law, and ensuring that their communities adhere to the teachings of the Quran and the traditions of the Prophet Muhammad. Throughout history, Islamic rulers have varied in their governance styles, from benevolent leaders who promote justice and welfare to tyrants who impose harsh rules. Their influence can be seen in the development of Islamic civilization, which has contributed significantly to art, science, and culture across the world.