Kitáb-i-Íqán (Persian: كتاب ايقان, Arabic: كتاب الإيقان "Book of Certitude") is one of many books held sacred by followers of the Baháʼí Faith; it is their primary theological work. One Baháʼí scholar states that it can be regarded as the "most influential Quran commentary in Persian outside the Muslim world," because of its international audience. It is sometimes referred to as the Book of Íqán or simply The Íqán. The Kitáb-i-Íqán is considered the second most important book in the Baháʼí writings, with the most important being the Kitáb-i-Aqdas. Source: Wikipedia (en)