Srimad-Bhagavatam: Canto 7 - Chapter 1 - Verse 12-13
Sanskrit:
तं शयानं धरोपस्थे कावेर्यां सह्यसानुनि ।रजस्वलैस्तनूदेशैर्निगूढामलतेजसम् ॥ १२ ॥ददर्श लोकान्विचरन् लोकतत्त्वविवित्सया ।वृतोऽमात्यै: कतिपयै: प्रह्रादो भगवत्प्रिय: ॥ १३ ॥
ITRANS:
taṁ śayānaṁ dharopasthekāveryāṁ sahya-sānunirajas-valais tanū-deśairnigūḍhāmala-tejasam
Translation:
Prahlāda Mahārāja, the most dear servitor of the Supreme Personality of Godhead, once went out touring the universe with some of his confidential associates just to study the nature of saintly persons. Thus he arrived at the bank of the Kāverī, where there was a mountain known as Sahya. There he found a great saintly person who was lying on the ground, covered with dirt and dust, but who was deeply spiritually advanced.