Bhagavatapurana 10.16.7.p2

10.16.7.p2

tasya hrade viharato bhuja-daṇḍa-ghūrṇa- $ vār-ghoṣam aṅga vara-vāraṇa-vikramasya &

8. O beloved king, when in the pool the Lord was sporting like a noble elephant, the serpent heard the splash of water as He struck them with his arms in swimming and, suspecting, perceived the destruction of his home; and in irresistible rage he came forth (out of his hiding place) (V. With all his troops.)