Useful Means for a Happy Life, by Sheikh 'Abd Ar-Rahmâne Ibn Nasser As Sa'di الرحمن بن ناصر السعدي

Praise be to Allah, thanks to His blessing, the good works are completed, praise be to Allah who has facilitated the re-edition of this excellent book which is, indeed, considered a remedy for psychological illnesses in the light of the Book of Allah ( the Quran) and the Sunnah of the Prophet (SWS) whoever clings firmly to these two things will never be misguided or unhappy.

I endeavored to correct the errors of the book, to collate it (i.e. compare the various existing versions), to add the numbering of its Quranic verses and to authenticate the chain the chain of narration of its hadiths prophetic.

Finally, I ask Allah the Generous, the Lord of the immense throne, that he makes this book profitable to its author, its reader, its listener and its distributor. He is enough for us, He is our best guarantor, and there is neither strength nor power except in Allah, the Most Great.

And our last invocation is "Praise be to Allah, Lord of the Universe, Lord of the Universe", and may Allah's blessings and salvation be upon the best of His creatures and His Prophets, Muhammad, upon his family , his companions and on those who follow him until the day of resurrection.