Ramayana
पितुर्वचनमासाद्य सगरस्य महात्मनः । षष्टिः पुत्रसहस्राणि रसातलमभिद्रवन् ॥ १-४०-१२
Receiving the command of their father, the magnanimous Sagara, his sixty thousand sons ran towards Rasatala (nether world). ॥ 1-40-12॥
english translation
piturvacanamAsAdya sagarasya mahAtmanaH । SaSTiH putrasahasrANi rasAtalamabhidravan ॥ 1-40-12
hk transliteration by Sanscript