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
Now place your hand under your armpit and it will come out white, though unharmed: that is another sign.
"And press your (right) hand to your (left) side: it will come forth white (and shining), without any disease as another sign,