[ULPIANUS libro uicensimo septimo ad edictum. ] §46.2.11.prDelegare est uice sua alium reum dare creditori uel cui iusserit.
[ULPIAN, in the twenty-seventh book on the Edict.] To delegate is to present another debtor in one's own stead to the creditor, or to whomsoever the creditor shall have directed.
§46.2.11.1Fit autem delegatio uel per stipulationem uel per litis contestationem.
Moreover, delegation takes place either by stipulation or by joinder of issue.