Manava Dharmashastra 3.160

3.160

avratāḥ asaṃyatāḥ śāstrācāravarjitāḥ | parivettṛprabhṛtayo yadyapi śāstrabāhyāstathāpi bhedena smaraṇārthaṃ doṣagurutvārthaṃ vā kathyante | anye cāpāṅkteyāḥ kāṇaślīpadādayaḥ | taiairyadannaṃ bhuktaṃ śrāddhe bhavati, tadrakṣāṃsi devadviṣo bhuñjate, na ca pitaraḥ | ato niṣphalaṃ tacchrāddhaṃ bhavatītyuktaṃ bhavati | rakṣograhaṇamarthavādaḥ |

Demons indeed consume the food that is eaten by Brāhmaṇas deviod of self-restraint, by such as those who have superseded their elder brother and the like, or by others that are unworthy of company.—(170)

Medhātithi’s commentary (manubhāṣya):
‘Devoid of self-restraint’—uncontrolled; whose practices are not controlled by the scriptures.

‘Those who have superseded their elder brother,’ and the like, are, in fact, outside the pale of the scriptures; yet they have been mentioned here with a view to differentiate them from others, and also to indicate the gravity of their offence.

‘Others that are unworthy of company’—such as the blind man, the man affected with elephantiasis, and so forth.

The food that is eaten by those people, at a Śrāddha, is consumed by ‘demons’—the enemies of gods,—and not by one’s ancestors. That is to say, the Śrāddha becomes entirely useless.

The mention of ‘demons’ is a purely deprecatory exaggeration.—(1 7 0)