[IDEM libro uicensimo secundo ad Sabinum. ] §41.3.29.prCum solus heres essem, existimarem autem te quoque pro parte heredem esse, res hereditarias pro parte tibi tradidi.
[THE SAME, On Sabinus, book 22] Since I was the sole heir, but thought that you also were an heir for a share, I delivered the hereditary things to you for a share.
propius est, ut usu eas capere non possis, quia nec pro herede usucapi potest quod ab herede possessum est neque aliam ullam habes causam possidendi.
It is more correct that you cannot usucapt them, because neither can that which has been possessed by an heir be usucapted as heir, nor do you have any other cause for possessing.
ita tamen hoc uerum est, si non ex transactione id factum fuerit.
This is true, however, only if it was not done as a result of a compromise.
idem dicimus, si tu quoque existimes te heredem esse: nam hic quoque possessio ueri heredis obstabit tibi.
We say the same if you also think that you are an heir; for here too the possession of the true heir will stand in your way.