श्रीमद् भगवद्गीता

English Translation of Ramanuja's Sanskrit Commentary By Swami Adidevananda

3.13 Those persons who acire food materials solely for propitiating the Supreme Person abiding as the Self of Indra and other deities, and who, after cooking them, propitiate, through them, the Supreme Person as He is, and then sustain themselves on the remnants of oblations (made for such propitiation), they alone will be free of impurities which have resulted from beginningless evil and which are inimical to the vision of the self. But they are evil-minded, who acire for selfish use the things which the Supreme Being, abiding as the Self of Indra and other deities, has granted them for worshipping Him with, and use it all on the other hand for feeding themselves - they eat only sin. Turning away from the vision of the self, they cook only for being led to Naraka (for the expiation of the sin incurred thery). Sri Krsna says that, from the standpoint of the world as well as that of the scriptures, everything has its origin in sacrifice; and He speaks of the need for the performance of the sacrifices and of the blemish in not performing the same:

English Translation Of Sri Shankaracharya's Sanskrit Commentary By Swami Gambirananda

3.13 Those again, who are yajna-sista-asinah, partakers of the remnants of sacrifices, who, after making offering to the gods and others, [The panca-maha-yajnas, five great offerings, which have to be made by every householder are offerings to gods, manes, humans, creatures and rsis (sages).] are habituated to eat the remnants (of those offerings), called nectar; they, santah, by being (so); mucyante, become freed; sarva-kilbisaih, from all sins-from those sins incurred through the five things [the five things are; oven, water-pot, cutting instruments, grinding machines and broom. A householder incurs sin by killing insects etc. with these things, knowingly or unknowingly. It is atoned by making the aforesaid five offerings.], viz oven etc., and also from those others incurred owing to injury etc. caused inadvertently. Tu, but; the papah, unholy persons, who are selfish; ye, who; pacanti, cook; atma-karanat, for themselves; te, they, being themselves sinful; bhunjate, incur; agham, sin. For the following reasons also actions should be undertaken by an eligible person. Action is definitely the cause of the movement of the wheel of the world. How? This is being answered: