[IDEM libro quinquagensimo secundo digestorum. ] §38.1.24.prQuotiens certa species operarum in stipulationem deducitur, ueluti pictoriae fabriles, peti quidem non possunt nisi praeteritae, quia etsi non uerbis, at re ipsa inest obligationi tractus temporis, sicuti cum Ephesi dari stipulemur, dies continetur.
[THE SAME, in the fifty-second book of the Digests.] Whenever a specific kind of services is brought into a stipulation, such as those of a painter or an artisan, they indeed cannot be demanded unless they are past, because even if not by words, by the very nature of the matter a tract of time is inherent in the obligation, just as when we stipulate for something to be given at Ephesus, a period of days is implied.
et ideo inutilis est haec stipulatio: 'operas tuas pictorias centum hodie dare spondes'? cedunt tamen operae ex die interpositae stipulationis.
And therefore, this stipulation is useless: "Do you promise to give one hundred of your services as a painter today?" Nevertheless, the services begin to accrue from the day the stipulation is entered into.
sed operae, quas patronus a liberto postulat, confestim non cedunt, quia id agi inter eos uidetur, ne ante cederent quam indictae fuissent, scilicet quia ex commodo patroni libertus operas edere debet: quod in fabro uel pictore dici non conuenit.
But the services which a patron demands from a freedman do not accrue immediately, because it is deemed to be agreed between them that they should not accrue before they have been ordered, namely because the freedman must perform the services according to the convenience of the patron; which is not fitting to be said in the case of an artisan or a painter.