[IAUOLENUS libro nono epistularum. ] §33.3.4.prSi is qui duas aedes habebat unas mihi, alteras tibi legauit et medius paries, qui utrasque aedes distinguat, interuenit, eo iure eum communem nobis esse existimo, quo, si paries tantum duobus nobis communiter esset legatus, ideoque neque me neque te agere posse ius non esse alteri ita immissas habere: nam quod communiter socius habet, et in iure eum habere constitit: itaque de ea re arbiter communi diuidundo sumendus est.
[JAVOLENUS, in the ninth book of Letters.] If a person who owned two buildings bequeathed one to me and the other to you, and a middle wall which separates both buildings stands between them, I think that the wall is common to us by the same right as if only the wall had been bequeathed to both of us in common; and therefore, neither I nor you can bring an action to the effect that the other has no right to have things thus inserted; for what a co-owner holds in common, it is established that he also holds in law. Therefore, an arbitrator for dividing common property must be appointed for this matter.