Islamic Faith & Practice (Fiqh)
At the very outset, is should be understood clearly that the entire structure of the Islamic faith and Shariat ( Holy Law ) is built upon the teachings of the sacred Prophet ( Peace be upon him ) . These teachings are, in their turn, comprised exclusively of the knowledge and commands revealed to the Prophet by God, and are preserved to this day in their pristine purity in the Quran and the Tradition.
Broadly, the tenets of Islam can be divided into two parts, belief and practice. The first part consists of truths we are incapable of knowing independently and on our own. To believe in them is an essential condition of the faith. Constituting as they do, the doctrinal part of Islam, their importance is fundamental. In the second part are included practical instructions regarding human life and behaviour the dos and don'ts of individual and social existence-and it is further split up into a number of sub-divisions like worship, morality, social conduct, rights and duties, culture and civilization, support and propagation of religion, and politicsand Government. Islam, by virtue of its being a complete code of life, takes a due note of all the different aspects of our existence.
Belief, in the special terminology of Islam, means to believe in the Prophets of God as such, that is, to acknowledge that for our guidance God had vouchsafed to them knowledge that was beyond the range of our intelligence and nderstanding, and, on the basis of it, to affirm what was communicated to us by them as from God, and to accept religion brought by them as Divine religion. Thus, it is indispensable for the faithful that he holds as true all the things the Prophets have taught to mankind in their capacity as Divine messengers. By rejecting even one of them hewill cease to be a believer. For instance, if a person says that he believes in Prophet Muhammad ( Peace be upon him ) and the oneness of God and in his glorious Attributes as revealed in the Quran and the Traditions, but does not agree with what the Prophet has taught about the last day and Heaven and Hell because his reason revolts against it, he cannot be a Muslim.