Leviticus 13:35-37

Living Bible

³⁵ But if, later on, this spot begins to spread, ³⁶ then the priest must examine him again and, without waiting to see if any yellow hair develops, declare him a leper. ³⁷ But if it appears that the spreading has stopped and black hairs are found in the spot, then he is healed and is not a leper, and the priest shall declare him healed.