A translation of the first of four volumes, this detailed reference provides the four legal views of Islamic acts of worship according to the interpretations of more recent traditionalists rather than from a medieval perspective. Dealing with the forms of worship, the volume elucidates the laws concerning ritual purity, ritual prayers, fasting, spiritual retreats, and the pilgrimage to Mecca which are discussed in-depth. A comprehensive glossary of Islamic terminology is also included, making this foundational text an ideal selection for academic libraries or individuals interested in an essential manual for the performance of religious duties of Islam.