De transactionibus theses LXIV

And indeed, transactions made in good faith cannot be rescinded.

XLI.

In the case of the defendant, it proceeds such that we say he is released by the law itself, if it was transacted in such a way that the claimant received what he was seeking.

XLII.

But if only an agreement has intervened, an exception of the pact is granted.

XLIII.

It is best, however, to add a penal stipulation to the agreement or the Aquilian stipulation, so that one does not recede from the agreement due to fear.

XLIIII.

Regarding the plaintiff, it is accepted that if he received something to withdraw from the suit, the defendant cannot reclaim it.

XLV.

If he received nothing, yet he has brought about a release for the defendant in such a way that he might receive something, an action with prescribed words is given to him, so that either the promises are fulfilled or the release is rescinded and the original obligation is restored.

XLVI.

But if nothing has been given or a release brought about for the defendant, and the plaintiff has only agreed that he will seek nothing hereafter, and at the same time agrees that the defendant should give something, it is agreed that an action cannot be brought based on a bare pact.

XLVII.

Moreover, causes or suits finished by legitimate transactions should not be revived, not even by an imperial rescript.