Islamic Sources/Maṣādir Islāmiyya (ISMI) is a double-blind peer-reviewed book series publishing text editions of primary sources of the Arab-Islamic heritage, covering all periods and regions of the Islamic world. The series is open to works on theology, philosophy, law, history, religious sciences, natural sciences, and literature, reflecting the broad contributions of Islamic civilization to various fields of knowledge. Authors are encouraged to submit editions of previously unpublished manuscripts, or new critical editions, annotations, and commentaries that provide significant new scholarly insights. All works will be preceded by a solid scholarly introduction in Arabic, English, French, German or Spanish.