This book consists of the most important affairs concerning the topics of Islamic monotheism (tauheed), as well as the core creed of Ahlus-Sunnah wal-Jama'ah (Muslims who stick to the teachings and tradition of Prophet Muhammad and with the Upright Group of Muslims). It also contains the rules of ritual ablution, Salah (obligatory prayers), Zakah (annual Islamic charity -rate), Sawm (fasting), and Hajj.