This book provides a translation by Sir Muhammad Zafarulla Khan of the Riyad as-Salihin, lierally “Gardens of the Rightous”, written by the Syrian Shafi’i scholar Muhyi ad-din Abu Zakariyya’ Yahya b. Sharaf an-Nawawi (1233-78), who was the author of a large number of legal and biographical work, including celebrated collection of forty well-known hadiths, the Kitab al- Arba’in (actually containing some forty three traditions.), much commented upon in the Muslim countries and translated into several European languages. His Riyad as-Salihin is a concise collection of traditions, which has been printed on various occasions, e.g. at Mecca and Cairo, but never before translated into a western language. Hence the present translation by Muhammad Zafarulla Khan will make available to those unversed in Arabic one of the most typical and widely-known collection of this type.