أَنْ تَقُولَ نَفْسٌ يَا حَسْرَتَا عَلَىٰ مَا فَرَّطْتُ فِي جَنْبِ اللَّهِ وَإِنْ كُنْتُ لَمِنَ السَّاخِرِينَ 56
Lest a soul should say, "Oh [how great is] my regret over what I neglected in regard to Allah and that I was among the mockers."