Bhagavatapurana 5.12.13

5.12.13

yatrottamaśloka-guṇānuvādaḥ prastūyate grāmya-kathā-vighātaḥ /
niṣevyamāṇo 'nudinaṃ mumukṣor matiṃ satīṃ yacchati vāsudeve //

12. D. O Rahugana, a person cannot attain this knowledge or attain to Brahman by virtue of austerities, by learning, by ascetic life, by domestic virtue, by the recitation of Vedas, etc. 13. And there (i.e., in the assembly of the great) are always held discourses on the excellent attributes of the most Glorious Lord which completely shut out all talk or thought of vulgar objects and which, when daily listened to, produce pure thoughts of Vasudeva in him who seeks after salvation.