Ihya ul Uloom - إحياء علوم الدين

Iḥyā′ ‘Ulūm al-Dīn is a 12th-century book written by Abū Ḥāmid Muḥammad ibn Muḥammad al-Ghazali. The book was composed in Arabic and was inspired by a personal religious experience. It is regarded as one of his chief works and a classic introduction to the pious Muslim's path to Allah.