Bhagavatapurana 3.13.4

3.13.4

śrutasya puṃsāṃ sucira-śramasya nanv añjasā sūribhir īḍito 'rthaḥ /
tat-tad-guṇānuśravaṇaṃ mukunda- pādāravindaṃ hṛdayeṣu yeṣām //

4. The fruit, commended by the wise, of the study made by men with great exertions over long years consists in this—that they come to listen to the excellent merits of those (devotees) in whose heart the lotus-like feet of Mukunda are enthroned.