The Sunnah is the living interpretation of the Qur'an by Prophet Muhammad (saas), the possessor of great moral values who had such great consideration for believers that he would become distressed when they were troubled and would relieve them of their burdens and chains of bigotry. The Prophet (saas) is the best role model for all humanity. Believers look at his Sunnah and learn how to implement its precepts and practices in their lives. The Prophet's (saas) entire life reveals a seriousness, responsibility, and sensitivity of which not even the slightest detail is neglected. This is the result of our Prophet (saas) having taught “wisdom,” alongside the Qur'an, to his community. Islam can only be practiced together with the Sunnah and Muslims can only apply the Qur'an into real life with its help. The Sunnah, on the other hand, is the belief of the Ahl al-Sunnah, which is the totality of our Prophet's (saas) authentic hadiths and their subsequent interpretations by the great Islamic scholars. This book reminds the importance of the subject by explaining the basic tenets of the Ahl al-Sunnah. It should be noted that those who abandon the Sunnah of the Messenger of Allah (saas) will lose a highly auspicious reward and be deprived of his intercession on the Day of Judgment.