Ezekiel 43:19-21

19And thou shalt give to the priests the Levites that are of the seed of Zadok, who approach to me, to minister to me, saith the Lord GOD, a young bull for a sin offering. 20And thou shalt take of his blood, and put it on its four horns, and on the four corners of the ledge, and upon the border on every side: thus shalt thou cleanse and purge it. 21Thou shalt take the bull also of the sin offering, and he shall burn it in the appointed place of the house, outside of the sanctuary.