39:13
Az-Zumar 13
Surah Az-Zumar (الزمر), verse 13 — reference 39:13. Arabic text with optional translation and free audio on Al-Qalam.
قُلْ إِنِّىٓ أَخَافُ إِنْ عَصَيْتُ رَبِّى عَذَابَ يَوْمٍ عَظِيمٍ
qul innī akhāfu in ʿaṣaytu rabbī ʿadhāba yawmin ʿaẓīmin
Say, "Indeed I fear, if I should disobey my Lord, the punishment of a tremendous Day."