عنوان مقاله [English]
"Tajrid Al-E'etiqad" is book in Arabic language about Islamic theology written by Khawja Nasir Al-Din Toosi (d 672 H) and is one of the best or according to some the first book about the theological and philosophical beliefs of Shi'a school. This from when it was written until now has always been subject of thoughts and studies of the Shi'a and Sunni scholars and thinkers for almost nine centuries. It is a turning point in the history of Islamic theology due to its special approach to philosophy and theology. Khawjah has arranged the subjects of the book in six parts and 12 sections with 225 matters. The most obvious characteristic of the book is that it extraordinarily brief. The present paper has tried to introduce the book by a descriptive method.