This work begins with the discourses of the Qur’ān and Prophetic Tradition, on Islam and other religious traditions. It then presents a historical survey of Muslim works in the field of comparative study of religions, written by some philosophers, theologians and Sūfīs. The work also deals sufficiently with the personal background of Ibn al-‘Arabī, arguably the greatest representative of the Sūfīs. There are also specific chapters on this visionary metaphysician’s general conception of religion; and, his interpretation of Qur’ānic terminologies such as islām, dīn, fitrah, mīthāq, īmān, kufr, sharī‘ah, minhāj, nubuwwah, risālah, millah, and ummah. A highly controversial issue of Ibn al-‘Arabī’s view on the diversity of religions; his understanding of the Qur’ānic views of naskh and tahrīf; and, his remarks about the non-Muslims’ paramount doctrines, especially regarding those of the Ahl al-Kitāb, are also considerably discussed.