رَبَّنَا إِنَّنَا نَخَافُ أَن يَفْرُطَ عَلَيْنَا أَوْ أَن يَطْغَىٰ ‎﴿٤٥﴾‏

Rabbanaa innanaa nakhaafu 'an yafruta 'alaynaa 'aw 'an yatghaa.

Our Lord, indeed we are afraid that he will hasten [punishment] against us or that he will transgress.

Reference: Surah Ta Ha 20:45