Bhagavad Gita 4.34 Chapter 4, Verse 34

तद्विद्धि प्रणिपातेन परिप्रश्नेन सेवया ।
उपदेक्ष्यन्ति ते ज्ञानं ज्ञानिनस्तत्त्वदर्शिनः ॥४.३४॥

tadviddhi praṇipātena paripraśnena sevayā
upadekṣyanti te jñānaṃ jñāninastattvadarśinaḥ

Meaning

Learn it from those who have seen the truth — by humble reverence, sincere questioning and service. The wise will teach you that knowledge.

Newly written by Bhajan Dhun — scholarly review in progress.

Reference: Bhagavad Gita 4.34 (Chapter 4, The Yoga of Knowledge and Renunciation of Action, Verse 34)