Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 43

Sanskrit:

ब्राह्मणार्थो ह्यपहृतो हर्तारं पातयत्यध: ।अजानन्तमपि ह्येनं नृगं ब्राह्मणगौरिव ॥ ४३ ॥

ITRANS:

brāhmaṇārtho hy apahṛtohartāraṁ pātayaty adhaḥajānantam api hy enaṁnṛgaṁ brāhmaṇa-gaur iva

Translation:

When a brāhmaṇa’s property is stolen, even unknowingly, it certainly causes the person who takes it to fall down, just as the brāhmaṇa’s cow did to Nṛga.

Purport:

The Lord here demonstrates that His instructions are not theoretical but practical, as seen concretely in the case of Nṛga Mahārāja.