[ULPIANUS libro quadragensimo octauo ad Sabinum. ] §45.1.34.prMultum interest, utrum ego stipuler rem, cuius commercium habere non possum, an quis promittat: si stipuler rem, cuius commercium non habeo, inutilem esse stipulationem placet: si quis promittat, cuius non commercium habet, ipsi nocere, non mihi.
[ULPIAN, in the forty-eighth book on Sabinus.] It makes a great difference whether I stipulate for a thing of which I cannot have the right of trade, or whether someone promises it: if I stipulate for a thing of which I do not have the right of trade, it is agreed that the stipulation is void; if someone promises a thing of which he does not have the right of trade, it is agreed that this is detrimental to himself, not to me.