[IDEM libro sexto ex Plautio. ] §46.3.66.prSi pupilli debitor iubente eo sine tutoris auctoritate pecuniam creditori eius numerauit, pupillum quidem a creditore liberat, sed ipse manet obligatus: sed exceptione se tueri potest.
[THE SAME, in his sixth book on Plautius.] If a debtor of a pupil, by the order of the pupil but without the authority of the tutor, has paid money to the pupil's creditor, he indeed releases the pupil from the creditor, but he himself remains bound; however, he can defend himself by an exception.
si autem debitor pupilli non fuerat, nec pupillo condicere potest, qui sine tutoris auctoritate non obligatur, nec creditori, cum quo alterius iussu contraxit: sed pupillus in quantum locupletior factus est, utpote debito liberatus, utili actione tenebitur.
But if he had not been a debtor of the pupil, he can neither bring an action for recovery against the pupil, who without the authority of the tutor is not bound, nor against the creditor, with whom he contracted by the order of another; but the pupil, to the extent that he has been made richer, inasmuch as he has been released from his debt, will be held liable by a useful action.