Leviticus 14:5-7

⁵And the priest shall command that one of the sparrows be offered in an earthen vessel upon quick waters;

⁶soothly he shall dip the tother sparrow quick, with the cedar wood, and with the red thread, and hyssop, in the blood of the sparrow offered,

⁷with which he shall sprinkle seven times him that shall be cleansed, that he be purged rightfully; and he shall deliver the quick sparrow, that it fly away into the field.