The document is an introduction to Al-Nawawi's Forty Hadith, a collection of 40 hadiths compiled by the 13th century Islamic scholar Imam Al-Nawawi. It provides background on the hadith that encouraged memorizing and preserving 40 hadiths. While this hadith is weak, scholars agree it is permissible to put into practice weak hadiths concerning virtuous deeds. The introduction outlines Al-Nawawi's aim to compile 40 of the most important hadiths that cover the major topics and principles of Islam, with most being from Bukhari and Muslim's collections.