SB 5.26.18
यस्त्विह वा असंविभज्याश्नाति यत्किञ्चनोपनतमनिर्मितपञ्चयज्ञो वायससंस्तुत: स परत्र कृमिभोजने नरकाधमे निपतति तत्र शतसहस्रयोजने कृमिकुण्डे कृमिभूत: स्वयं कृमिभिरेव भक्ष्यमाण: कृमिभोजनो यावत्तदप्रत्ताप्रहूतादोऽनिर्वेशमात्मानं यातयते ॥ १८ ॥
yajña-śiṣṭāśinaḥ santo
mucyante sarva-kilbiṣaiḥ
bhuñjate te tv agham pāpā
ya pacanty ātma-kāraṇāt
yajñārthāt karmaṇo 'nyatra
loko 'yam karma-bandhanaḥ
tad-arthaṁ karma kaunteya
mukta-saṅgaḥ samācara
SYNONYMS

yaḥ—any person who; tu—but; iha—in this life; vā—or; asaṁ-vibhajya—without dividing; aśnāti—eats; yat kiñcana—whatever; upanatam—obtained by Kṛṣṇa's grace; anirmita—not performing; pañca-yajñaḥ—the five kinds of sacrifice; vāyasa—with the crows; saṁstutaḥ—who is described as equal; saḥ—such a person; paratra—in the next life; kṛmibhojane—named Kṛmibhojana; naraka-adhame—into the most abominable of all hells; nipatati—falls down; tatra—there; śata-sahasra-yojane—measuring 100,000 yojanas (800,000 miles); kṛmi-kuṇḍe—in a lake of worms; kṛmi-bhūtaḥ—becoming one of the worms; svayam—he himself; kṛmibhiḥ—by the other worms; eva—certainly; bhakṣyamāṇaḥ—being eaten; kṛmi-bhojanaḥ—eating worms; yāvat—as long as; tat—that lake is wide; apratta-aprahūta—unshared and unoffered food; adaḥ—one who eats; anirveśam—who has not performed atonement; ātmānam—to himself; yātayate—gives pain.

TRANSLATION

A person is considered no better than a crow if after receiving some food, he does not divide it among guests, old men and children, but simply eats it himself, or if he eats it without performing the five kinds of sacrifice. After death he is put into the most abominable hell, known as Kṛmibhojana. In that hell is a lake 100,000 yojanas [800,000 miles] wide and filled with worms. He becomes a worm in that lake and feeds on the other worms there, who also feed on him. Unless he atones for his actions before his death, such a sinful man remains in the hellish lake of Kṛmibhojana for as many years as there are yojanas in the width of the lake.

PURPORT

As stated in Bhagavad-gītā (3.13):

yajña-śiṣṭāśinaḥ santo
mucyante sarva-kilbiṣaiḥ
bhuñjate te tv agham pāpā
ya pacanty ātma-kāraṇāt
"The devotees of the Lord are released from all kinds of sins because they eat food which is first offered for sacrifice. Others, who prepare food for personal sense enjoyment, verily eat only sin." All food is given to us by the Supreme Personality of Godhead. Eko bahūnāṁ yo vidadhāti kāmān: the Lord supplies everyone with the necessities of life. Therefore we should acknowledge His mercy by performing yajña (sacrifice). This is the duty of everyone. Indeed, the sole purpose of life is to perform yajña. According to Kṛṣṇa (Bg. 3.9):
yajñārthāt karmaṇo 'nyatra
loko 'yam karma-bandhanaḥ
tad-arthaṁ karma kaunteya
mukta-saṅgaḥ samācara
"Work done as a sacrifice for Viṣṇu has to be performed, otherwise work binds one to this material world. Therefore, O son of Kuntī, perform your prescribed duties for His satisfaction, and in that way you will always remain unattached and free from bondage." If we do not perform yajña and distribute prasāda to others, our lives are condemned. Only after performing yajña and distributing the prasāda to all dependents—children, brāhmaṇas and old men—should one eat. However, one who cooks only for himself or his family is condemned, along with everyone he feeds. After death he is put into the hell known as Kṛmibhojana.