[LICINNIUS RUFINUS libro octauo regularum. ] §18.1.70.prLiberi hominis emptionem contrahi posse plerique existimauerunt, si modo inter ignorantes id fiat.
[LICINNIUS RUFINUS, in the eighth book of Rules.] Most authorities have held that the sale of a free man can be contracted, provided that it takes place between parties who are ignorant of the fact.
quod idem placet etiam, si uenditor sciat, emptor autem ignoret.
The same is also accepted if the seller knows but the buyer is ignorant.
quod si emptor sciens liberum esse emerit, nulla emptio contrahitur.
But if the buyer, knowing him to be free, purchases him, no sale is contracted.