Allah, the Almighty, says: 'Say: "Are those who know equal to those who know not?' (Quran - chapter: Az-Zumar, verse: 9) Moreover, the Prophet said: 'When Allah wishes good for anyone, He bestows upon him the Fiqh (comprehension) of the religion' [Agreed upon]. The knowledgeable scholars also said: 'what is understood from this Hadith is that whoever Allah wills no good for him, Allah will not make him knowledgeable in religious matters'. This book is about Faith which Allah has made a condition for accepting a servant's work and entering the Paradise. Faith is fulfilled through pronouncing with the tongue, believing in the heart, and working with the limbs.