This is the book of the Islamic scholar Yahia bin Sharaful-Deen An-Nawawi. The book is now known as "An-Nawawi's Forty Hadiths". This is a popular small book in which the author gathered forty two of the sayings of prophet Muhammed salla Allah u alihi wa sallam. Imam Nawawi's 40 Hadees in Tamil. Keywords Nawawi, Islam, Hadees, Tamil, Tamil Nadu, 40 hadees.