[GAIUS libro nono ad edictum prouinciale. ] §14.5.1.prOmnia proconsul agit, ut qui contraxit cum eo, qui in aliena potestate sit, etiamsi deficient superiores actiones, id est exercitoria institoria tributoriaue, nihilo minus tamen in quantum ex bono et aequo res patitur suum consequatur.
[Gaius, on the Provincial Edict, Book 9] The proconsul takes all measures so that a person who has contracted with someone in another's power, even if the higher actions—that is, the exercitorian, institorian, or tributorian actions—are lacking, may nevertheless recover his due as far as equity and justice permit.
siue enim iussu eius, cuius in potestate sit, negotium gestum fuerit, in solidum eo nomine iudicium pollicetur: siue non iussu, sed tamen in rem eius uersum fuerit, eatenus introducit actionem, quatenus in rem eius uersum fuerit: siue neutrum eorum sit, de peculio actionem constituit.
For if the transaction was carried out by the order of the person in whose power he is, the proconsul promises a trial for the full amount under that name; or if not by his order, but it was nevertheless turned to his profit, he grants an action to the extent that it was turned to his profit; or if it is neither of these, he establishes an action concerning the peculium.