Exodus 4:6-7

6The Lord furthermore said to him, “Now put your hand inside the fold of your robe.” So he put his hand inside the fold, and when he took it out, behold, his hand was 1leprous like snow.

7Then He said, “Put your hand inside the fold of your robe again.” So he put his hand into the fold again, and when he took it out of the fold, behold, 2it was restored like the rest of his flesh.