The author, Muhy al-Din Yahya ibn Sharaf al-Nawawi (631-676/123-1277) devoted his entire life to the pursuit of sacred knowledge. He is revered throughout the Sunni world as one of its greatest authorities. Among his most famous writings are the Arba’in, a collection of forty Hadiths; a commentary on the Sahih of Imam Muslim; and Kitab al-Adhkar. Designed as a reference guide and a source of inspiration, this volume presents a clear and elegant English translation of Imam al-Nawawis classic, together with the text of every single prayer and invocation, both in Arabic letters and in romanisation. Also included are all the authors statements about those Hadiths which he related personally from his own teachers, and his guidance on the correct spelling and meanings of rare words and names. Finally, al-Nawawis comments on the sources of Hadiths are supplemented by further scholarly notes. Revised and edited by Muhammad Isa Waley.