Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 40

Sanskrit:

निश्चलाम्बुरभूत्तूष्णीं समुद्र: शरदागमे ।आत्मन्युपरते सम्यङ्‍मुनिर्व्युपरतागम: ॥ ४० ॥

ITRANS:

niścalāmbur abhūt tūṣṇīṁsamudraḥ śarad-āgameātmany uparate samyaṅmunir vyuparatāgamaḥ

Translation:

With the arrival of autumn, the ocean and the lakes became silent, their water still, just like a sage who has desisted from all material activities and given up his recitation of Vedic mantras.

Purport:

One recites ordinary Vedic mantras for material promotion, mystic power and impersonal salvation. But when a sage is completely free of personal desire, he vibrates the transcendental glories of the Supreme Lord exclusively.