Leviticus 22:4-7

4What man soever of the seed of Aaron is a leper, or hath a running issue; he shall not eat of the holy things, until he be clean. And whoso toucheth any thing that is unclean by the dead, or a man whose seed goeth from him;1

5Or whosoever toucheth any creeping thing, whereby he may be made unclean, or a man of whom he may take uncleanness, whatsoever uncleanness he hath;

6The soul which hath touched any such shall be unclean until even, and shall not eat of the holy things, unless he wash his flesh with water.

7And when the sun is down, he shall be clean, and shall afterward eat of the holy things; because it is his food.