Chapter: Encouragement to Hold Fast to the Book of Allah Most High, the Sunnah of the Messenger of Allah—may Allah bless him and grant him peace—and the way of his Companions—may Allah be pleased with them—and to Abandon Religious Innovations, Speculative Inquiry, and Disputation That Contradict the Book, the Sunnah, and the Statements of the Companions—may Allah be pleased with them