Leviticus 27:26
But no one may consecrate a firstborn of the livestock, because a firstborn belongs to the LORD. Whether it is an ox or a sheep, it is the LORD’s.
Berean Standard Bible
Only the firstling of the beasts, which should be the LORD’s firstling, no man shall sanctify it; whether it be ox, or sheep: it is the LORD’s.
“‘However the firstborn among animals, which belongs to the LORD as a firstborn, no man may dedicate, whether an ox or a sheep. It is the LORD’s.