Bhagavatapurana 10.16.34

10.16.34

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anugraho 'yaṃ bhavataḥ kṛto hi no daṇḍo 'satāṃ te khalu kalmaṣāpahaḥ /
yad dandaśūkatvam amuṣya dehinaḥ krodho 'pi te 'nugraha eva sammataḥ //

34. Indeed by Thee a favour is conferred on us; for Thy punishment of the wicked absolves them from sin and it is through sin he has fallen down and is born as a serpent; therefore even Thy wrath is considered by the wise to be an agreeable grace shed by Thee.