Numbers 19:22

“Moreover, whoever goes into the house during the time that he has put it under isolation becomes unclean until evening.

‘All the days of his dedication as a Nazirite to Yahweh he shall not go near to a dead person.

But there were some men who were unclean because of a dead person, so that they could not celebrate Passover on that day; so they came near before Moses and Aaron on that day.

“And you, camp outside the camp seven days; whoever has killed any person and whoever has touched any slain, purify yourselves, you and your captives, on the third day and on the seventh day.

Then Haggai said, “If one who is unclean from a corpse touches any of these, will the latter become unclean?” And the priests answered, “It will become unclean.”