This is a pivotal treatise by Imam Ahmad ibn Abd al-Halim al-Harrani on the Islamic principle of hisbah. In this 2018 paperback edition spanning 97 pages, the author systematically outlines the religious and social obligation to encourage virtuous acts and discourage wrongdoing. The work delves into the scriptural foundations, conditions, and appropriate methods for implementation, distinguishing between the responsibilities of the state and the individual. It serves as a comprehensive guide for understanding a core tenet of Islamic social ethics, providing clarity on one of the most important duties for the welfare of the community.