Do not cook meat and milk together

"You shall bring the very first of the first fruits of your soil into the house of the LORD your God. "You shall not boil a young goat in its mother's milk."

Hebrew

כו רֵאשִׁית, בִּכּוּרֵי אַדְמָתְךָ, תָּבִיא, בֵּית יְהוָה אֱלֹהֶיךָ; לֹא-תְבַשֵּׁל גְּדִי, בַּחֲלֵב אִמּוֹ. {פ}

Greek

26 τὰ πρωτογενήματα τῆς γῆς σου θήσεις εἰς τὸν οἶκον κυρίου τοῦ θεοῦ σου. οὐ προσοίσεις ἄρνα ἐν γάλακτι μητρὸς αὐτοῦ.

• Parashah: Ki Tisa
• Sefer HaChinuch: 113
• Mishneh Torah: Holiness — Forbidden Foods

• Exodus 34:26

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