Fundamentals of Sunnah is a book of Imam Ahmad ibn Hanbal, which outlines the rules that every Muslim should know. This book is a guide and path to salvation and happiness in both worlds as it collects the beliefs of the first generations of our community. The book stresses the importance of adhering to these basic principles and teachings of Islam, which are essential for every Muslim's life. In the words of Imam Malik, "I do not succeed the last generation of this community, except by order, whereby the first of her generation have succeeded." The book is highly recommended for anyone seeking to learn about the fundamentals of Islam.