[IDEM libro uicensimo primo ad edictum. ] §41.3.12.prSi ab eo emas, quem praetor uetuit alienare, idque tu scias, usucapere non potes.
[THE SAME, On the Edict, book 21] If you should buy from someone whom the praetor has forbidden to alienate, and you know this, you cannot acquire by usucapion.