וַ֠יַּקְרִבוּ בְּנֵ֨י אַהֲרֹ֣ן אֶת־הַדָּם֮ אֵלָיו֒ וַיִּטְבֹּ֤ל אֶצְבָּעוֹ֙ בַּדָּ֔ם וַיִּתֵּ֖ן עַל־קַרְנ֣וֹת הַמִּזְבֵּ֑חַ וְאֶת־הַדָּ֣ם יָצַ֔ק אֶל־יְס֖וֹד הַמִּזְבֵּֽחַ׃
And the sons of Aaron presented the blood unto him; and he dipped his finger in the blood, and put it upon the horns of the altar, and poured out the blood at the base of the altar.
Targum Jonathan on Leviticus
And the sons of Aharon brought the blood to him, and he dipped his finger in the blood of the young bullock, and put it upon the horns of the altar, and the rest of the blood he poured out at the foundation of the altar, and sanctified it for the making of atonement upon it.