Leviticus 13:7

But if the scab spread much abroad in the skin, after that he hath been seen of the priest for his cleansing, he shall be seen of the priest again:

Cross-reference

In Leviticus 13:27, the same rule applies to a boil: if the sore spreads, the priest declares it unclean — parallel to the scab spreading here.

In Leviticus 13:35, the same spreading-after-cleansing rule applies to head/chin sores — a direct parallel to the body scab here.

In Leviticus 13:36, the same determination of uncleanness when scab spreads is applied to head/chin cases — parallel diagnostic step.

Leviticus 14:39 applies the same re-examination procedure to house mold — a direct parallel within the same legal framework.