A fatwa is a legal ruling on a point of Islamic law (sharia) given by a qualified Islamic jurist (faqih) in response to a question posed by a private individual, judge or government. A jurist issuing fatwas is called a mufti, and the act of issuing fatwas is called ifta'. Fatwas have played an important role throughout Islamic history, taking on new forms in the modern era.

Sharia is a body of religious law that forms a part of the Islamic tradition based on scriptures of Islam, particularly the Quran and hadith. In Arabic, the term sharīʿah refers to God's immutable divine law and this referencing is contrasted with fiqh, which refers to its interpretations by Islamic scholars. Fiqh, practical application side of sharia in a sense, was elaborated over the centuries by legal opinions issued by qualified jurists and sharia has never been the sole valid legal system in Islam historically; it has always been used alongside customary law from the beginning, and applied in courts by ruler-appointed judges, integrated with various economic, criminal and administrative laws issued by Muslim rulers.