Leviticus 13:31

But when the priest vieweth the spot, and lo! there is, no appearance, of it deeper than the skin, and, no dark hair, is therein, then shall the priest shut up him that hath the plague-spot of scall, seven days;

Treasury of Scripture Knowledge

Summary

And if the priest look on the plague of the scall, and, behold, it be not in sight deeper than the skin, and that there is no black hair in it; then the priest shall shut up him that hath the plague of the scall seven days:

Seven days

Bible References

Seven days

Leviticus 13:4
But, if the bright spot, though white in the skin of his flesh, is not deeper in appearance than the skin, and, the hair, hath not turned white, then shall the priest shut up the plagued one, seven days.