[ULPIANUS libro quadragensimo septimo ad Sabinum. ] §46.3.24.prUbi fideiussor pro duobus dena fideiussit, obligatus est in uiginti, et siue uiginti siue dena soluerit, utrumque reum liberabit.
[ULPIAN in the forty-seventh book on Sabinus.] When a surety has guaranteed ten for each of two debtors, he is bound for twenty, and whether he pays twenty or ten, he will release both principal debtors.
sed si quinque soluerit, uideamus, quem ex reis releuet in quinque? erit ille releuatus, de quo actum est aut, si non appareat, antiquius debitum erit inspiciendum.
But if he pays five, let us see which of the debtors he relieves to the extent of five? That person will be relieved about whom it was agreed, or, if it does not appear, the older debt must be looked at.
idem et si quindecim sint soluta: si quidem appareat, quid actum sit, inde decem et aliunde quinque erunt releuata, si uero non apparet, ex antiquiore contractu decem, ex alio quinque erunt releuata.
The same applies also if fifteen are paid: if indeed it appears what was agreed, ten will be relieved from that source and five from the other, but if it does not appear, ten will be relieved from the older contract and five from the other.