Riyad As-Salihin (The meadows of the Righteous) is a collection of hadiths, or sayings and actions of the Prophet Muhammad, compiled by the 13th century Islamic scholar, Imam Nawawi. The book is considered a classic in Islamic literature and is widely read and studied by Muslims around the world. The collection includes hadiths on a range of topics, such as faith, morality, manners, and spirituality, and provides practical guidance on how to lead a righteous life. It is a valuable resource for Muslims seeking to deepen their understanding of Islamic teachings and to improve their practice of the faith.