Contact With the
Any person who comes in contact with the dead (is in the presence of someone
who dies - or enters into the room of someone who has died, touches a human
corpse or bone, or touches a grave) is unclean for seven days. On the third
and seventh day of his uncleanliness, he must be washed with the water of
lustration - which is comprised of ashes from the red heifer and fresh water.
The person who is washing the unclean man must sprinkle the water of lustration
on the unclean man using a sprig of hyssop. On any occasion where the clean
person has used the water of lustration to clean a person defiled by the
dead - that person becomes unclean until nightfall.