[LABEO libro primo pithanon a Paulo epitomatorum. ] §40.7.41.prSi quem seruum tuum ad certum tempus statuliberum relinquere uis, nihil interest, utro modo caueas, 'si seruierit' an 'si triennio operas dederit', liber esto'. §40.7.41.1PAULUS. Si quis liber esse iussus fuerit, si decem heredi promisisset, quamquam ea promissio nullam rem habitura est, tamen promittendo liberabitur.
[LABEO, from the first book of Plausible Truths, epitomized by Paulus.] If you wish to leave any slave of yours as conditionally free for a certain period, it makes no difference in which of the two ways you make the provision: "if he serves" or "if he performs services for three years, let him be free." PAULUS: If anyone has been ordered to be free on condition that he promises ten to the heir, although that promise will have no legal effect, nevertheless he will be freed by making the promise.