وَاضۡمُمۡ يَدَكَ اِلٰي جَنَاحِكَ تَخۡرُجۡ بَيۡضَآءَ مِنۡ غَيۡرِ سُوۡٓءٍ اٰيَةً اُخۡرٰيۙ‏

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