Srimad Bhagavatam — Shashtha Skandha, Shloka 20
Indra’s Brahma-hatyā, Flight from Sin, and Purification by Aśvamedha
अथेज्यमाने पुरुषे सर्वदेवमयात्मनि । अश्वमेधे महेन्द्रेण वितते ब्रह्मवादिभि: ॥ १९ ॥ स वै त्वाष्ट्रवधो भूयानपि पापचयो नृप । नीतस्तेनैव शून्याय नीहार इव भानुना ॥ २० ॥
athejyamāne puruṣe sarva-devamayātmani aśvamedhe mahendreṇa vitate brahma-vādibhiḥ
The horse sacrifice performed by the saintly brāhmaṇas relieved Indra of the reactions to all his sins because he worshiped the Supreme Personality of Godhead in that sacrifice. O King, although he had committed a gravely sinful act, it was nullified at once by that sacrifice, just as fog is vanquished by the brilliant sunrise.
FAQs
This verse says that even a great burden of sin—like that from killing Vṛtrāsura—can be nullified by the proper sacrificial act, compared to fog vanishing in sunlight.
He is called tvāṣṭra because he was born from Tvaṣṭā (Viśvarūpa’s father), and thus his slaying is described as 'tvāṣṭra-vadha.'
Sincere, dharmic corrective action—done with proper intent and guidance—can gradually clear heavy guilt and wrongdoing, just as light naturally removes darkness.