Vayikra 9:7-9

Orthodox Jewish Bible

⁷ And Moshe said unto Aharon, Go unto the Mizbe’ach, and offer thy chattat (sin offering), and thy olah (burnt offering), and make kapporah for thyself, and for the people; and offer the korban of the people, and make kapporah for them; just as Hashem commanded.

⁸ Aharon therefore went unto the Mizbe’ach, and slaughtered (shachat) the calf of the chattat (sin offering), which was for himself.

⁹ And the Bnei Aharon brought the dahm unto him; and he dipped his forefinger in the dahm, and put it upon the horns of the Mizbe’ach, and poured out the dahm at the foundation of the Mizbe’ach;