Ma`rifat Kalami

One of the contemporary theological topics debated, under the influence of the new western culture, is the issue of "the realm of religion". This discussion is important because it can clearly help us understand religious texts and is an evidence for the correct understanding of religion. I have studied the approach of one of the important Shi’ite collection of traditions, i.e. the noble book ‘Usul al-Kafi’, regarding "the realm of religion", by compiling hadith groups. Putting together all the traditions of ‘Usul al-Kafi’ with the same subject according to a general standard, I have found that " the interference of religion in different fields of human life is to the extent that it is tied to the ultimate prosperity of human". It is important to consider that examining the domain of religion from an intra-religious perspective is assumed to be possible.