It says in the introduction to the book: As for after: This is one of the valuable modern parts that testify to this nation in its predecessor and its progress in the field of science and knowledge, and guidance and insight, and it is a part that derives its importance and scientific value from matters: the most important of which are its contents and contents. Lord of the worlds to his faithful Messenger, so there is no access to the knowledge of the truth of this religion except with it, as it is the guilt of the Qur'an and from it the evidence is taken and detailed, so there is no survival except by walking on its path and taking its legislation and standing at its orders and not violating its incest.