Sunnah Filiyyah refers to the actions and practices of the Prophet Muhammad that are not explicitly commanded in the Quran but are still considered important for Muslims to follow. These actions provide guidance on how to live a life that aligns with Islamic values and principles. The term emphasizes the significance of the Prophet's behavior and choices in daily life, serving as a model for Muslims. By observing and emulating these practices, followers can enhance their understanding of Islam and strengthen their faith.