A summary of the hadith explanation from the Jami'at al-Kalam, by Ibn Rajab al-Hanbali (736/1335-795/1393). One of the best explanations of 'Arbain Nawawi', where he added hadiths to a complete of 50. Hadith upon which rulings are based. A rich and clear summary by Muhammad bin Suleiman bin Abd Allah al-Muhanna.