Vayikra 14:48-50

Orthodox Jewish Bible

⁴⁸ And if the kohen shall come in, and examine it, and, hinei, the nega hath not spread in the bais, after the bais was plastered, then the kohen shall pronounce the bais tahor (clean), because the nega is healed.

⁴⁹ And he shall take to purify the bais two birds, and cedar wood, and scarlet thread, and hyssop;

⁵⁰ And he shall kill (shachat) the one of the birds in a clay vessel over mayim chayyim (running water);