[IDEM libro singulari de heurematicis. ] §3.3.65.prSi procuratorem absentem dominus satisdatione releuare uelit, litteras suas ad aduersarium derigere debebit, quibus significet, quem aduersus eum procuratorem et in qua causa fecerit, ratumque se habiturum quod cum eo actum sit: hoc enim casu litteris eius adprobatis uelut praesentis procuratorem interuenire intellegendum est.
[THE SAME in his single book On Heurematics.] If a master wishes to release an absent procurator from the requirement of giving security, he must direct his letter to the opponent, in which he should indicate whom he has appointed as procurator against him and in what case, and that he will ratify whatever has been done with him; for in this case, upon the approval of his letter, it is to be understood that the procurator intervenes as if the master were present.
itaque etsi postea mutata uoluntate procuratorem esse noluerit, tamen iudicium, quo quasi procurator expertus est, ratum esse debet.
Therefore, even if he afterwards changes his mind and does not want him to be the procurator, nevertheless the judgment in which he engaged as procurator must be held valid.