[ULPIANUS libro quarto ad edictum. ] §2.14.22.prnisi hoc actum est, ut dumtaxat a reo non petatur, a fideiussore petatur: tunc enim fideiussor exceptione non utetur.
[ULPIANUS, On the Edict, book 4] unless it was intended that, while no claim is made against the principal debtor, a claim may be made against the surety; for in that case, the surety will not use the exception.