Leviticus 27:25
24. In the year of the jubile the field shall return unto him of whom it was bought, even to him to whom the possession of the land did belong.25. And all thy estimations shall be according to the shekel of the sanctuary: twenty gerahs shall be the shekel.26. 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.
Leviticus თავი 27