Ramayana
गन्धर्वाप्सरसांसङ्घादृष्टवायुद्धमनूपमम् । गगनंगगनाकारंसागरस्सागरोपमः ॥ ६-११०-२३
Gandharvas and Apsaras watching the an unimaginable war said that sky is its own analogue for sky, sea is its own analogue to sea - ॥ 6-110-23॥
english translation
gandharvApsarasAMsaGghAdRSTavAyuddhamanUpamam । gaganaMgaganAkAraMsAgarassAgaropamaH ॥ 6-110-23
hk transliteration by Sanscript