﴿ قَالَا رَبَّنَآ إِنَّنَا نَخَافُ أَن يَفْرُطَ عَلَيْنَآ أَوْ أَن يَطْغَىٰ ﴾

“The two [brothers] said: "O our Sustainer! Verily, we fear lest he act hastily with regard to us, or lest he [continue to] transgress all bounds of equity."”

(They said: Our Lord! Lo! we fear that he may be beforehand with us) we fear that he may be hasty with us (or that he may play the tyrant) and kill us.