This work is an important resource for finding salvation in this world and the hereafter, attaining eternal bliss, and earning the pleasure of Allah (swt) and His Messenger (saw). It teaches the rulings and subtleties regarding belief (i'tiqad), words of disbelief (alfaz al-kufr), the correction of deeds (tashih al-a'mal), and similar topics in order to join the fortunate group within the Ahl as-Sunnah school, known as the "Firqa an-Najiyah" (the Saved Sect). This book is extremely important for every Muslim and is a fundamental religious text.