The seriously inquisitive student or sage, well equipped with knowledge and detachment, realizes that Absolute Truth by rendering devotional service in terms of what he has heard from the Vedānta-śruti.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तच्छ्रद्दधाना मुनयो ज्ञानवैराग्ययुक्तया । पश्यन्त्यात्मनि चात्मानं भक्त्या श्रुतगृहीतया
tacchraddadhānā munayo jñānavairāgyayuktayā | paśyantyātmani cātmānaṃ bhaktyā śrutagṛhītayā
SB 1.2.12