17 Preface فَلا تَعلَمُ نَفسٌ ما أُخفِيَ لَهُم مِن قُرَّةِ أَعيُنٍ جَزاءً بِما كانوا يَعمَلونَAhmed AliNo soul knows what peace and joy lie hidden from them as reward for what they have done.