[POMPONIUS libro uicensimo quarto ad Sabinum. ] §45.2.4.prDuo rei promittendi siue ita interrogati 'spondetis?' respondeant 'spondeo' aut 'spondemus', siue ita interrogati 'spondes?' respondissent 'spondemus', recte obligantur.
[POMPONIUS in the twenty-fourth book to Sabinus.] Whether two joint debtors of promising, when asked "do you promise?" (plural), answer "I promise" or "we promise", or when asked "do you promise?" (singular), they had answered "we promise", they are validly bound.