TSK · Numbers 31:20

Then Jacob said unto his household, and to all that [were] with him, Put away the strange gods that [are] among you, and be clean, and change your garments:

This [is] the law, when a man dieth in a tent: all that come into the tent, and all that [is] in the tent, shall be unclean seven days.

And whatsoever the unclean [person] toucheth shall be unclean; and the soul that toucheth [it] shall be unclean until even.