[IDEM libro quinto ad Plautium. ] §12.5.9.prSi uestimenta utenda tibi commodauero, deinde pretium, ut reciperem, dedissem, condictione me recte acturum responsum est: quamuis enim propter rem datum sit et causa secuta sit, tamen turpiter datum est.
[THE SAME, Fifth Book on Plautius.] If I have lent you garments to use, and then, in order to get them back, I have paid a price, it was answered that I can rightly bring an action by condictio; for although the payment was made for a purpose and the purpose has been realized, yet the payment was made wrongfully.
§12.5.9.1Si rem locatam tibi uel uenditam a te uel mandatam ut redderes, pecuniam acceperis, habebo tecum ex locato uel uendito uel mandati actionem: quod si, ut id, quod ex testamento uel ex stipulatu debebas, redderes mihi, pecuniam tibi dederim, condictio dumtaxat pecuniae datae eo nomine erit.
If you have accepted money in order to return a thing leased to you, or sold by you, or entrusted to you to return, I shall have against you an action on the lease, or on the sale, or on the mandate; but if I have given you money so that you would return to me that which you owed under a will or a stipulation, there will only be a condictio for the money paid under that head.
idque et Pomponius scribit.
And Pomponius also writes this.