[PAULUS libro primo ad Sabinum. ] §30.1.5.prSerui electione legata semel dumtaxat optare possumus.
[PAULUS, Book 1 on Sabinus.] When the choice of a slave has been bequeathed, we can make our selection only once.
§30.1.5.1Labeo ait, cum certa res aut persona legatur ita: 'qui meus erit cum moriar, heres dato' et communis sit, totum deberi.
Labeo says that when a specific thing or person is bequeathed in this way: 'whoever shall be mine when I die, let my heir give him', and it is co-owned, the whole is due.
Trebatium uero respondisse partem deberi Cassius scripsit, quod et uerius est.
However, Cassius wrote that Trebatius answered that only the share is due, which is indeed more correct.
§30.1.5.2Cum fundus communis legatus sit non adiecta portione, sed 'meum' nominauerit, portionem deberi constat.
When a co-owned land is bequeathed without specifying the share, but the testator has named it as 'mine', it is established that the share is due.