The sharia, or Islamic law, profoundly influences the daily lives of Muslims by providing a comprehensive code of behavior that governs both private and public activities. It is derived from the Qurʾān and the teachings of Muhammad.
Sharia duties are divided into those owed to God, such as daily prayers, almsgiving, fasting, and pilgrimage, and those owed to other human beings, including interpersonal matters. It encompasses ethical standards and legal rules, indicating what one ought to do or refrain from doing.
Family law within the sharia is based on a patriarchal outlook. The dietary laws also play a role in establishing a sense of social identity and separateness.