Leviticus 13:31

And when the priest seeth the plague of the scall, and lo, its appearance is not deeper than the skin, and there is no black hair in it, then hath the priest shut up him who hath the plague of the 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
And if the bright spot is white in the skin of his flesh, and its appearance is not deeper than the skin, and its hair hath not turned white, then hath the priest shut up him who hath the plague seven days.