וְאֶת־הַקֶּ֥רֶב וְאֶת־הַכְּרָעַ֖יִם רָחַ֣ץ בַּמָּ֑יִם וַיַּקְטֵר֩ מֹשֶׁ֨ה אֶת־כָּל־הָאַ֜יִל הַמִּזְבֵּ֗חָה עֹלָ֨ה ה֤וּא לְרֵֽיחַ־נִיחֹ֙חַ֙ אִשֶּׁ֥ה הוּא֙ לַיהוָ֔ה כַּאֲשֶׁ֛ר צִוָּ֥ה יְהוָ֖ה אֶת־מֹשֶֽׁה׃
And when the inwards and the legs were washed with water, Moses made the whole ram smoke upon the altar; it was a burnt-offering for a sweet savour; it was an offering made by fire unto the LORD; as the LORD commanded Moses.
Sifra
18) "and Moses smoked the head, and the pieces, and the suet": as it is written (Vayikra 1:12): "And he shall cut it into its pieces, and its head and its suet." (Vayikra 8:21): "And the innards and the legs he washed with water": as it is written (Vayikra 1:13): "And the innards and the legs he shall wash with water." (Vayikra 8:21) "and Moses smoked the whole ram upon the altar": as it is written (Vayikra 1:13): "and he shall smoke it upon the altar." (Vayikra 8:21): "It is a burnt-offering for a sweet savor": as it is written (Vayikra 1:13): "a fire-offering, a sweet savor to the L–rd." From here it is derived that all (the limbs of the burnt-offering) are consigned to the fire.
Midrash Tanchuma Buber
Moses was first with the priesthood, with the pulpit, with the sacrifices, and with the Torah.
• [With the priesthood, when he served in the high priesthood for the seven days during the consecration (of Aaron and his sons.)]73yYoma 1:1 (38b); Lev. R. 11:7; PRK 4:5; PR 14:11.
• With the pulpit, when he had Eleazar stand on the pulpit. Thus it is stated (in Numb. 3:32): AND THE PRINCE OF THE LEVITE PRINCES WAS ELEAZAR….74As a Levite he would officiate from a pulpit.
• With the sacrifices: Where is it shown? (Lev. 8:21): MOSES SACRIFICED THE [WHOLE] RAM UPON THE ALTAR (during the consecration of Aaron and his sons).
• With the Torah: Where is it shown? Where it is stated (in Exod. 24:12): COME UP TO ME ON THE MOUNTAIN [AND BE THERE, AND I WILL GIVE YOU STONE TABLETS WITH TORAH AND THE COMMANDMENTS WHICH I HAVE WRITTEN FOR THEIR INSTRUCTION].
• [With the priesthood, when he served in the high priesthood for the seven days during the consecration (of Aaron and his sons.)]73yYoma 1:1 (38b); Lev. R. 11:7; PRK 4:5; PR 14:11.
• With the pulpit, when he had Eleazar stand on the pulpit. Thus it is stated (in Numb. 3:32): AND THE PRINCE OF THE LEVITE PRINCES WAS ELEAZAR….74As a Levite he would officiate from a pulpit.
• With the sacrifices: Where is it shown? (Lev. 8:21): MOSES SACRIFICED THE [WHOLE] RAM UPON THE ALTAR (during the consecration of Aaron and his sons).
• With the Torah: Where is it shown? Where it is stated (in Exod. 24:12): COME UP TO ME ON THE MOUNTAIN [AND BE THERE, AND I WILL GIVE YOU STONE TABLETS WITH TORAH AND THE COMMANDMENTS WHICH I HAVE WRITTEN FOR THEIR INSTRUCTION].