בְּכַלּוֹתְךָ֖ מֵֽחַטֵּ֑א תַּקְרִיב֙ פַּ֣ר בֶּן־בָּקָ֣ר תָּמִ֔ים וְאַ֥יִל מִן־הַצֹּ֖אן תָּמִֽים׃
When thou hast made an end of purifying it, thou shalt offer a young bullock without blemish, and a ram out of the flock without blemish.
Read midrashic interpretation of Ezekiel 43:23: and classical rabbinic exegesis.