Skandapurana 16.223.41

16.223.41

tasya dānasya yatpuṇyaṃ tadasmākaṃ prajāyate ..
yasmingṛhe sadocchiṣṭaṃ sadā ca kalaho bhavet ..
vaiśvadevavihīne tu tatra bhuṃjāmahe vayam .. 41 ..

whatever religious merit belongs to that gift becomes ours. / In whichever house there are always food scraps and constant strife, / and which is devoid of the Vaiśvadeva rite, there we eat.”