حصن المسلم فني

This is a popular booklet that compiles daily supplications (dhikr) for Muslims, such as morning and evening remembrances, supplications upon waking, and supplications for prayer, presented in a clear and well-documented style. It is one of the most widely circulated books in the Muslim world due to its small size, the accuracy of its hadith verification, and its comprehensive coverage of everything a Muslim needs to protect themselves throughout the day and night.