2-55 Al-Baqara (The Cow)

وَإِذْ قُلْتُمْ يَا مُوسَى لَن نُّؤْمِنَ لَكَ حَتَّى نَرَى اللَّهَ جَهْرَةً فَأَخَذَتْكُمُ الصَّاعِقَةُ وَأَنتُمْ تَنظُرُونَ
Waith qultum ya moosa lan numina laka hatta nara Allaha jahratan faakhathatkumu alssaAAiqatu waantum tanthuroona

2:55 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.