﴿ وَإِذْ قُلْتُمْ يَٰمُوسَىٰ لَن نُّؤْمِنَ لَكَ حَتَّىٰ نَرَى ٱللَّهَ جَهْرَةًۭ فَأَخَذَتْكُمُ ٱلصَّٰعِقَةُ وَأَنتُمْ تَنظُرُونَ ﴾

“And [remember] when you said, "O Moses. indeed we shall not believe thee unto we see God face to face!" - whereupon the thunderbolt of punishment overtook you before your very eyes.”

(And when you said: O Moses! We will not believe in you) in what you say (till we see Allah plainly) until we see Him plainly as you did; (and even while you gazed the lightning seized you) the Fire burnt you while you were looking at it.