Renewal means to make something new. Renewal of religion means reviving its tarnished teachings and sunnah, highlighting its impressions and signs and popularizing them among the people, which have faded with the passage of time. This makes it clear that in the sense of renewal, there is no mixing or inclusion of something new in religion, nor does it mean that parts of it are torn apart, some are taken and some are left. . In this book, it is clarified and interpreted with respect to various topics.