Leviticus 14:46
Moreover he that goeth into the house all the while that it is shut up shall be unclean until the even.
Cross-reference
In Leviticus 11:24, touching a carcass brings uncleanness until evening, exactly as entering the quarantined house does in Leviticus 14:46.
Leviticus 11:28 also declares uncleanness until evening from touching an unclean carcass — same duration and principle of contact defilement.
In Leviticus 22:6, a priest who touches an unclean thing is unclean until evening — directly parallel time limit for impurity.
In Leviticus 15:10, touching items under a person with discharge gives uncleanness until evening — parallel to entering a contaminated house.
In Leviticus 11:25, carrying a carcass requires washing clothes plus uncleanness until evening—a stricter parallel to the simple entry rule in Leviticus 14:46.
Leviticus 15:5-8 requires uncleanness until evening and washing after touching a discharge — similar pattern of impurity from contact.
Leviticus 17:15 imposes uncleanness until evening for eating a carcass — similar temporary impurity as from entering the house.
Numbers 19:21 says touching the purification water makes one unclean until evening — identical rule of contagion.
Numbers 19:22 extends impurity by touch: anything touched by an unclean person becomes unclean, bringing uncleanness until evening — same chain of defilement.
Numbers 19:7-10 requires uncleanness until evening and washing for handling the red heifer — same pattern of temporary defilement.