Bhagavatapurana 5.19.9

5.19.9

bhārate 'pi varṣe bhagavān nara-nārāyaṇākhya ākalpāntam upacita-dharma-jñāna-vairāgyaiśvaryopaśamoparamātmopalambhanam anugrahāyātmavatām anukampayā tapo 'vyakta-gatiś carati //

9. So also in the continent of Bharata the glorious Lord under the name of NaraNarayana exhibits in Himself ever growing righteousness, wisdom, renunciation, supreme powers and perfect control of senses and passion and realisation of Atman; and without manifesting the secret of His ways, He performs such tapas only out of His compassion for the righteous and for the purpose of bestowing His grace upon them".