Surah Az-Zumar · The Troops · Verse 56/75

Qur'an 39:56

أَن تَقُولَ نَفْسٌۭ يَٰحَسْرَتَىٰ عَلَىٰ مَا فَرَّطتُ فِى جَنۢبِ ٱللَّهِ وَإِن كُنتُ لَمِنَ ٱلسَّٰخِرِينَ

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."

Quran 39:56 — Az-Zumar (الزمر)