Leviticus 27:10

27:10 He must not replace or exchange it, good for bad or bad for good, and if he does indeed exchange one animal for another animal, then both the original animal and its substitute will be holy.

Leviticus 27:15

27:15 If the one who consecrates it redeems his house, he must add to it one fifth of its conversion value in silver, and it will belong to him.

Leviticus 27:19

27:19 If, however, the one who consecrated the field redeems it, he must add to it one fifth of the conversion price and it will belong to him.