Surah Al-Qasas, verse 32

ٱسْلُكْ يَدَكَ فِى جَيْبِكَ تَخْرُجْ بَيْضَآءَ مِنْ غَيْرِ سُوٓءٍ وَٱضْمُمْ إِلَيْكَ جَنَاحَكَ مِنَ ٱلرَّهْبِ ۖ فَذَٰنِكَ بُرْهَـٰنَانِ مِن رَّبِّكَ إِلَىٰ فِرْعَوْنَ وَمَلَإِي۟هِۦٓ ۚ إِنَّهُمْ كَانُوا۟ قَوْمًا فَـٰسِقِينَ ﴿٣٢﴾

28:32 Put your hand into your garment, it will come out shining white without blemish; and draw your arms tight to you to calm your fear. These are two proofs from your Lord to Pharaoh and his chiefs, for they are indeed a rebellious people.”