Whoever disbelieves, disbelieves to the detriment of his own soul, while those who lead a righteous life, do so to strengthen and develop their own souls.
مَن كَفَرَ فَعَلَيهِ كُفرُهُ وَمَن عَمِلَ صٰلِحًا فَلِأَنفُسِهِم يَمهَدونَ
man kafara fa’alaihi kufruhoo wa man ‘amila saalihan fali anfusihim yamhadoon