Naradapurana 1.17.6

Nāradapurāṇa 1.17.6

ye sādhavaḥ sādhu bhajanti viṣṇuṃ svārthaṃ parārthaṃ ca yatanta eva /
nānopadeśaiḥ suvimugdhacittaṃ prabodhayanti prasabhaṃ prasannam //