Mahārāja Parīkṣit said: O learned brāhmaṇa, you know everything because you are without material contamination. Therefore whatever you have spoken to me appears perfectly right. Your speeches are gradually destroying the darkness of my ignorance, for you are narrating the topics of the Lord.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
राजोवाच । समीचीनं वचो ब्रह्मन् सर्वज्ञस्य तवानघ । तमो विशीर्यते मह्यं हरेः कथयतः कथाम्
rājovāca | samīcīnaṃ vaco brahman sarvajñasya tavānagha | tamo viśīryate mahyaṃ hareḥ kathayataḥ kathām
SB 2.4.5