The forty days are in the virtue of supplication and those who supplicate

Translation

The Book of Forty on the Virtue of Supplication and the Callers is a collection of selected prophetic hadiths that relate to the virtue of supplication and its importance in the life of a Muslim, and also includes recommended supplications in specific situations and times of the day. The book covers various topics, from supplication after eating to recommended supplications when leaving the house or entering the cemetery, through to ruqyah and recommended supplications at specific times.