וְאִם־תַּחְתֶּיהָ֩ תַעֲמֹ֨ד הַבַּהֶ֜רֶת לֹא־פָשְׂתָ֤ה בָעוֹר֙ וְהִ֣וא כֵהָ֔ה שְׂאֵ֥ת הַמִּכְוָ֖ה הִ֑וא וְטִֽהֲרוֹ֙ הַכֹּהֵ֔ן כִּֽי־צָרֶ֥בֶת הַמִּכְוָ֖ה הִֽוא׃ (פ)
And if the bright spot stay in its place, and be not spread in the skin, but be dim, it is the rising of the burning, and the priest shall pronounce him clean; for it is the scar of the burning.
Read halakhic rulings (Jewish law) on Leviticus 13:28: and classical halakhic sources.