Leviticus 5:3 in the King James Version
Or if he touch the uncleanness of man, whatsoever uncleanness it be that a man shall be defiled withal, and it be hid from him; when he knoweth of it, then he shall be guilty.
Context
2 “‘Or if anyone touches any unclean thing, whether it is the carcass of an unclean animal, or the carcass of unclean livestock, or the carcass of unclean creeping things, and it is hidden from him, and he is unclean, then he shall be guilty.
3 “‘Or if he touches the uncleanness of man, whatever his uncleanness is with which he is unclean, and it is hidden from him; when he knows of it, then he shall be guilty.
4 “‘Or if anyone swears rashly with his lips to do evil or to do good—whatever it is that a man might utter rashly with an oath, and it is hidden from him—when he knows of it, then he will be guilty of one of these.