A book translated into French in which Sheikh Abdurrahman ibn Nasir as-Sadi emphasized that the brilliance of material civilization should not blind us from the reality of misery that humanity endures. As a result, he tried to uncover religious, realistic reasons and means to achieve the useful ways of having a happy life.
A very beautiful book in French consists of many simple authentic supplications that a Muslim should daily or occasionally say, based on Quranic and Prophetic texts.