[IDEM libro trigensimo quarto ad Sabinum. ] §8.3.25.prSi partem fundi mei certam tibi uendidero, aquae ductus ius, etiamsi alterius partis causa plerumque ducatur, te quoque sequetur: neque ibi aut bonitatis agri aut usus eius aquae ratio habenda est ita, ut eam solam partem fundi, quae pretiosissima sit aut maxime usum eius aquae desideret, ius eius ducendae sequatur, sed pro modo agri detenti aut alienati fiat eius aquae diuisio.
[THE SAME, On Sabinus, Book 34] If I sell to you a certain part of my land, the right of aqueduct, even if the water is usually drawn for the sake of the other part, will follow you as well; and in that case, account is not to be taken either of the quality of the land or of the use of that water in such a way that the right of drawing it should follow only that part of the land which is most valuable or which most requires the use of that water, but a division of that water should be made in proportion to the size of the land retained or alienated.