Numbers 19:11-14

11He that toucheth the dead body of any man shall be unclean seven days: 12the same shall purify himself therewith on the third day, and on the seventh day he shall be clean: but if he purify not himself the third day, then the seventh day he shall not be clean. 13Whosoever toucheth a dead person, the body of a man that hath died, and purifieth not himself, defileth the tabernacle of Jehovah; and that soul shall be cut off from Israel: because the water for impurity was not sprinkled upon him, he shall be unclean; his uncleanness is yet upon him.

14This is the law when a man dieth in a tent: every one that cometh into the tent, and every one that is in the tent, shall be unclean seven days.