A person can declare cherem his consecrated animals, be they kodshei kodashim or kodashim kalim. If it is a neder, he gives the worth [of the animal]; if it is a nedavah, he gives its benefit to him. [If one had said,] ‘This ox shall be an olah offering,’ we evaluate how much a person would be willing to give for this ox to offer it as an olah offering that he is not obligated [to bring]. A bechor — whether it is unblemished or blemished, one may declare it cherem. How do they redeem it? The redeemers evaluate how much a person would be willing to give for this bechor, that it be given to his daughter’s son, or his sister’s son. R’ Yishmael says: One verse states, you shall consecrate, while another verse states that one may not consecrate. It is impossible to say consecrate, for it is already stated that one may not consecrate. It is [similarly] impossible to say not to consecrate, for it has already been stated, consecrate. [Therefore,] you must now say: You may consecrate it as a consecration of assessment, but you cannot consecrate it as a consecration to the Altar.