[MARCIANUS libro quarto regularum. ] §46.1.23.prSi 'mihi aut Titio decem?' stipulatus fuerim, Titius fideiussorem accipere non potest, quia solutionis tantum causa adiectus est.
[MARCIANUS in the fourth book of Rules.] If I have stipulated, 'Ten to me or to Titius?', Titius cannot accept a surety, because he has been added only for the purpose of payment.