26:135

إِنِّي أَخَافُ عَلَيْكُمْ عَذَابَ يَوْمٍ عَظِيمٍ

Transliteration:

Innee akhafu AAalaykum AAathaba yawmin AAatheemin

Word by Word:

Indeed, I [I] fear for you (the) punishment (of) a Day Great."

Translations:

for, verily, I fear lest suffering befall you on an awesome day!"

"Truly I fear for you the Penalty of a Great Day."

Lo! I fear for you the retribution of an awful day.

Surely I fear for you the chastisement of a grievous day.

Indeed, I fear for you the punishment of a terrible day."