Taha 20:22

وَٱضْمُمْ يَدَكَ إِلَىٰ جَنَاحِكَ تَخْرُجْ بَيْضَآءَ مِنْ غَيْرِ سُوٓءٍ ءَايَةً أُخْرَىٰ

Wa-uḍ'mum yadaka ilā janāḥika takhruj bayḍāa min ghayri sūin āyatan ukh'rā

And draw in your hand to your side; it will come out white without disease - another sign,