Ihya Uloom Uddin (4 Volumes)
This book is Imam al-Ghazali’s. The book reflects on Tasawwuf (Sufism) and its related components which is purification of the heart, soul, mind and body, tazkiyya, scepticism, philosophy, and spiritual retreat.
Volume 1: Book of Worship
Volume 2: Book of Worldly Usages
Volume 3: Book of Destructive Evils
Volume 4: Book of Constructive Virtues.
By: Imam Al-Ghazali