[PAULUS libro trigensimo primo ad edictum. ] §46.2.12.prSi quis delegauerit debitorem, qui doli mali exceptione tueri se posse sciebat, similis uidebitur ei qui donat, quoniam remittere exceptionem uidetur.
[PAULUS, in the thirty-first book on the Edict.] If anyone delegates a debtor who knew that he could defend himself by the plea of fraud, that debtor will seem similar to one who makes a gift, since he is deemed to waive the plea.
sed si per ignorantiam promiserit creditori, nulla quidem exceptione aduersus creditorem uti poterit, quia ille suum recepit: sed is qui delegauit tenetur condictione uel incerti, si non pecunia soluta esset, uel certi, si soluta esset, et ideo, cum ipse praestiterit pecuniam, aget mandati iudicio.
But if through ignorance he has made a promise to the creditor, he will indeed be unable to use any plea against the creditor, because the latter has received what was due to him; but the person who delegated him is liable either by an action for an uncertain thing, if the money has not been paid, or for a certain thing, if it has been paid, and therefore, when he himself has paid the money, he will bring an action on mandate.