[IDEM libro decimo disputationum. ] §12.6.30.prQui inuicem creditor idemque debitor est, in his casibus, in quibus compensatio locum non habet, si soluit, non habet condictionem ueluti indebiti soluti, sed sui crediti petitionem.
[THE SAME, Disputations, Book 10.] A person who is mutually both a creditor and a debtor, in those cases in which set-off does not take place, if he has made payment, does not have an action for recovery as if of an undue payment, but has a claim for his own credit.