Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 26
Sanskrit:
राम: समुद्रवेलायां योगमास्थाय पौरुषम् ।तत्याज लोकं मानुष्यं संयोज्यात्मानमात्मनि ॥ २६ ॥
ITRANS:
rāmaḥ samudra-velāyāṁyogam āsthāya pauruṣamtatyāja lokaṁ mānuṣyaṁsaṁyojyātmānam ātmani
Translation:
Lord Balarāma then sat down on the shore of the ocean and fixed Himself in meditation upon the Supreme Personality of Godhead. Merging Himself within Himself, He gave up this mortal world.