وَإِذْ قُلْتُمْ يَا مُوسَى لَن نُّؤْمِنَ لَكَ حَتَّى نَرَى اللَّهَ جَهْرَةً فَأَخَذَتْكُمُ الصَّاعِقَةُ وَأَنتُمْ تَنظُرُونَ
[2:55]
And when you said: O Musa! we will not believe in you until we see Allah manifestly, so the punishment overtook you while you looked on.
And remember ye said: "O Moses! We shall never believe in thee until we see Allah manifestly," but ye were dazed with thunder and lighting even as ye looked on.
And when ye said: O Moses! We will not believe in thee till we see Allah plainly; and even while ye gazed the lightning seized you.