Leviticus 14:1-5

The LORD said to Moses, “These are the teachings for the time at which people who had a harmful skin disease are made clean. “The person shall be brought to the priest, and the priest must go outside the camp and look at the one who had the skin disease. If the skin disease is healed, the priest will command that two living, clean birds, a piece of cedar wood, a piece of red string, and a hyssop plant be brought for cleansing the person with the skin disease. “The priest must order one bird to be killed in a clay bowl containing fresh water.