Śrāddha-kalpa: Amarakantaka–Tīrtha-Māhātmya and Akṣaya Pitṛ-Tarpaṇa
पिण्डं गृह्णति हि सतां न गृह्णात्यसतां सदा / अतिप्रदीप्तैर्भुजगैर्भोक्तुमन्नं न शक्यते
piṇḍaṃ gṛhṇati hi satāṃ na gṛhṇātyasatāṃ sadā / atipradīptairbhujagairbhoktumannaṃ na śakyate
The piṇḍa of the virtuous is indeed accepted there, but that of the wicked is never accepted—just as one cannot eat food amid serpents blazing with fierce heat.