Leviticus 27:34 WBT

³²  And concerning the tithe of the herd, or of the flock, [even] of whatever passeth under the rod, the tenth shall be holy to the LORD.

³³  He shall not search whether it is good or bad, neither shall he change it: and if he shall change it at all, then both it and the change of it shall be holy; it shall not be redeemed.

³⁴  These [are] the commandments which the LORD commanded Moses for the children of Israel in mount Sinai.