וְאִם־כֶּ֛בֶשׂ יָבִ֥יא קָרְבָּנ֖וֹ לְחַטָּ֑את נְקֵבָ֥ה תְמִימָ֖ה יְבִיאֶֽנָּה׃
И если он принесет ягненка как жертву за жертву за грех, он принесет ему женщину без порока.
English Explanation of Mishnah Keritot
Rabbi Shimon says: lambs are mentioned before goats in all places. You might think that it is because they are choicer, therefore Scripture states, “And if he brings a lamb as his offering,” (Leviticus 4:32) to teach that both are equal. In the Torah “lambs” are always mentioned before “goats,” when the two come in one verse. See for instance Exodus 12:5, or Leviticus 5:6. This is not because there is any preference to offer a lamb. The proof of this is Leviticus 4:32, which mentions the lamb, whereas in vs. 28 of the same chapter the goat is mentioned. The Torah switches the order to let us know that the two are equal.
Ibn Ezra
two rams…and a ewe Since the illness of ṣara‘at is a rebuke for acts of the tongue, he must offer one ram as a burnt-offering, as prescribed for any emergent impulse [comment on 1:4]; one ram as a guilt-offering, following the rule for a guilt-offering [5:18]; and a female for a sin-offering, following the rule for a sin-offering [4:28]; and three-tenths in accordance with the principle of one-tenth per lamb [Numbers 15:4].