Bhagavatapurana 3.9.21

3.9.21

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yan-nābhi-padma-bhavanād aham āsam īḍya $ loka-trayopakaraṇo yad-anugraheṇa &
yan-nābhi-padma-bhavanād aham āsam īḍya $ loka-trayopakaraṇo yad-anugraheṇa &
tasmai namas ta udara-stha-bhavāya yoga- % nidrāvasāna-vikasan-nalinekṣaṇāya //

21. I bow to Thee, O Praiseworthy One, I who through Thy grace, was born in the lotus--mansion of Thy navel and who am through Thy grace made useful to the three worlds (in finding them on the path of Dharma). I bow to the Lord into whose stomach the world is withdrawn and whose lotus-like eyes open at the end of His yoganidra.