[PAULUS libro quinquagensimo primo ad edictum. ] §40.12.17.prIn seruo et in eo, qui mandato nostro emit, tale est, ut, si certum hominem mandauero emi sciens liberum esse, licet is, cui mandatum est, ignoret, idem sit: et non competet ei actio.
[PAULUS on the Edict, book fifty-one.] In the case of a slave and of him who buys by our mandate, the rule is such that, if I have mandated a certain person to be bought, knowing that he is free, even though he to whom the mandate was given is ignorant of it, the result is the same: and the action will not belong to him.
contra autem, si ego ignoraui, procurator scit, non est mihi deneganda.
On the other hand, if I was ignorant but the procurator knew, it must not be denied to me.