दिक्पालादि-शिवलोकान्तर-कथनम्
Account of the Dikpālas and Intervening Realms toward Śiva’s Worlds
अधक्रोशसमायामा अन्यास्सर्वाश्च वापिकाः / चतुर्योजनदूरं तु तलं तस्या जलान्तरे
adhakrośasamāyāmā anyāssarvāśca vāpikāḥ / caturyojanadūraṃ tu talaṃ tasyā jalāntare
All the other ponds were about a krośa in length; but the bed of that one, within its waters, lay as far as four yojanas down.