Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 5
Sanskrit:
क्वचित् समुद्रमध्यस्थो दोर्भ्यामुत्क्षिप्य तज्जलम् ।देशान् नागायुतप्राणो वेलाकूले न्यमज्जयत् ॥ ५ ॥
ITRANS:
kvacit samudra-madhya-sthodorbhyām utkṣipya taj-jalamdeśān nāgāyuta-prāṇovelā-kūle nyamajjayat
Translation:
Another time he entered the ocean and, with the strength of ten thousand elephants, churned up its water with his arms and thus submerged the coastal regions.