Vayikra 14:4-6

Orthodox Jewish Bible

⁴ Then shall the kohen command to take for him that is to be cleansed two birds alive and tehorot (clean ones), and cedar wood, and scarlet thread, and hyssop;

⁵ And the kohen shall command that one of the birds be shachat in a clay vessel over mayim chayyim (running water);

⁶ As for the living bird, he shall take it, and the cedar wood, and the scarlet thread, and the hyssop, and shall dip them and the living bird in the dahm of the bird that was killed (shachat) over the mayim chayyim (running water);