Ramayana
पश्चिमेन तु तं दृष्ट्वा सागरोद्गारसन्निभम् । वर्धन्तमम्भसो वेगं पूर्वामाशां प्रविश्य तु ॥ 7-32-9 ॥
Looking toward the west, he saw the swelling current of the water, resembling the upheaval of the ocean, advancing as it pushed into the eastern quarter.
english translation