Bhagavatapurana 3.33.24

3.33.24

bhakti-pravāha-yogena vairāgyeṇa balīyasā /
yuktānuṣṭhāna-jātena jñānena brahma-hetunā //

24. By means of overflowing love and devotion, powerful—(unshakable) renunciation, and of the knowledge which was produced by the proper observances (as laid down in the Gita) and which leads to the state of being Brahman ;