[IDEM libro quinto digestorum. ] §45.1.95.prQui insulam fieri stipulatur, ita demum adquirit obligationem, si apparet, quo in loco fieri insulam uoluerit: si et ibi insulam fieri interest eius.
[THE SAME, Digest, Book 5] He who stipulates for an apartment building to be built acquires an obligation only if it appears in which place he wished the apartment building to be built, and if it is also to his interest for the apartment building to be built there.