Surah Az-Zumar · The Troops · Verse 13/75

Qur'an 39:13

قُلْ إِنِّىٓ أَخَافُ إِنْ عَصَيْتُ رَبِّى عَذَابَ يَوْمٍ عَظِيمٍۢ

Say, "Indeed I fear, if I should disobey my Lord, the punishment of a tremendous Day."

Quran 39:13 — Az-Zumar (الزمر)