This document provides an introduction and background to the book "Riyadh al-Saliheen" (Gardens of the Righteous) by Imam al-Nawawi. It discusses how the Prophet's companions preserved the Quran and sunnah. It highlights Imam al-Nawawi's role in codifying the sunnah through authoring numerous books, including Riyadh al-Saliheen which compiles authentic hadiths on virtues and worship. It notes the book's widespread popularity due to containing Prophetic guidance on purifying the soul and elevating it through worship, as well as providing instruction for individuals and societies on religious and worldly matters in an easy to understand manner