Ezekiel 43:22

וּבַיּוֹם֙ הַשֵּׁנִ֔י תַּקְרִ֛יב שְׂעִיר־עִזִּ֥ים תָּמִ֖ים לְחַטָּ֑את וְחִטְּאוּ֙ אֶת־הַמִּזְבֵּ֔חַ כַּאֲשֶׁ֥ר חִטְּא֖וּ בַּפָּֽר׃

And on the second day thou shalt offer a he goat without blemish for a sin offering; and they shall purify the altar, as they did purify it with the bullock.