Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 46
Sanskrit:
एवंविधो नरपतिर्विमानेनार्कवर्चसा ।विधूयेहाशुभं कृत्स्नमिन्द्रेण सह मोदते ॥ ४६ ॥
ITRANS:
evaṁ-vidho nara-patirvimānenārka-varcasāvidhūyehāśubhaṁ kṛtsnamindreṇa saha modate
Translation:
An earthly king who protects himself and all citizens by removing all sins from his kingdom will certainly enjoy with Lord Indra in airplanes as brilliant as the sun.