Do not change consecrated animals from one type of offering to another

'However, a firstborn among animals, which as a firstborn belongs to the LORD, no man may consecrate it; whether ox or sheep, it is the LORD'S.

Hebrew

כו אַךְ-בְּכוֹר אֲשֶׁר-יְבֻכַּר לַיהוָה, בִּבְהֵמָה--לֹא-יַקְדִּישׁ אִישׁ, אֹתוֹ: אִם-שׁוֹר אִם-שֶׂה, לַיהוָה הוּא.

Greek

26 Καὶ πᾶν πρωτότοκον, ὃ ἂν γένηται ἐν τοῖς κτήνεσίν σου, ἔσται τῷ κυρίῳ, καὶ οὐ καθαγιάσει οὐθεὶς αὐτό· ἐάν τε μόσχον ἐάν τε πρόβατον, τῷ κυρίῳ ἐστίν.

• Parashah: B'chukotai
• Sefer HaChinuch: 356
• Mishneh Torah: Sacrifices — Substitution for Consecrated Animals

• Leviticus 27:26

Enumeration and classification from BibleData. The Greek is the Septuagint reading of the same verse, carried by the source for comparison.