The word played an important role in the life of Begovich, sometimes he freed his soul and at other times the prison was deposited, as he only possessed the word to address the audience and bring them together on an Islamic constitution that protects humanity and guarantees it progress. The Islamic Declaration Book is the practical application of the analytical theory that Begovich established in the book "Islam between East and West", as the book "Islamic Declaration" provides the basic rules for building a modern Islamic society, and how to develop a strong political and economic system, to establish an Islamic state based on the teachings of the Qur'an and the Sunnah of the Prophet Correct, in addition to taking advantage of the concept of modern civilization.