Al Qasas Ayah 32

ٱسْلُكْ يَدَكَ فِى جَيْبِكَ تَخْرُجْ بَيْضَآءَ مِنْ غَيْرِ سُوٓءٍ وَٱضْمُمْ إِلَيْكَ جَنَاحَكَ مِنَ ٱلرَّهْبِ‌ۖ فَذَٲنِكَ بُرْهَـٰنَانِ مِن رَّبِّكَ إِلَىٰ فِرْعَوْنَ وَمَلَإِيْهِۦٓ‌ۚ إِنَّهُمْ كَانُواْ قَوْمًا فَـٰسِقِينَ ٣٢ Now put your hand through ?the opening of? your collar, it will come out ?shining? white, unblemished. And cross your arms tightly to calm your fears. These are two proofs from your Lord to Pharaoh and his chiefs. They have truly been a rebellious people.”