וְאֶ֨ת־הָאַ֔יִל תְּנַתֵּ֖חַ לִנְתָחָ֑יו וְרָחַצְתָּ֤ קִרְבּוֹ֙ וּכְרָעָ֔יו וְנָתַתָּ֥ עַל־נְתָחָ֖יו וְעַל־רֹאשֽׁוֹ׃
And thou shalt cut the ram into its pieces, and wash its inwards, and its legs, and put them with its pieces, and with its head.
Read midrashic interpretation of Exodus 29:17: and classical rabbinic exegesis.