[POMPONIUS libro primo ad Sabinum. ] §28.2.10.prCommodissime is qui nondum natus est ita heres instituitur: 'siue uiuo me siue mortuo natus fuerit, heres esto', aut etiam pure neutrius temporis habita mentione.
[POMPONIUS, Book 1 on Sabinus.] He who is not yet born is most conveniently appointed heir in this way: 'whether he be born in my lifetime or after my death, let him be heir', or even simply, with mention made of neither time.
si alteruter casus omissus fuerit, eo casu qui omissus sit natus rumpit testamentum, quia hic filius nec sub condicione quidem scriptus heres intellegitur, qui in hunc casum nascitur, qui non est testamento adprehensus.
If either of the two cases is omitted, he who is born in that case which was omitted breaks the testament, because this son, who is born in this case which was not covered in the testament, is not understood to be appointed heir even under a condition.