Pṛthivī-dohaṇa (The Milking of the Earth) and the Praise of King Pṛthu
अपृथग्धर्मचरणास्ते ऽतप्यन्त महात्तपः / दशवर्ष सहस्राणि समुद्रसलिलेशयाः
apṛthagdharmacaraṇāste 'tapyanta mahāttapaḥ / daśavarṣa sahasrāṇi samudrasalileśayāḥ
United in the practice of dharma, they performed mighty austerity for ten thousand years, lying within the ocean’s waters.