The Explanation of FORTY HADITH by Imam An-Nawawi
The collection of Forty hadīth by Imam An-Nawawi (may ALLAH rest his soul in peace), has been known, accepted and appreciated by Muslim scholars for the last seven centuries. The book you have now gives more illustration, significance, and importance to those prophetic traditions.
They constitute the major branches of the Islamic creed and the one who sticks to which will never get astray. This is the legacy that the Prophet (peace be upon him) left for us.