Ramayana
अथर्क्षरजसो नाम वालिसुग्रीवयोः पिता । सर्ववानरराजा ऽ ऽसीत्तेजसा भास्करप्रभः ॥ 7-36-37 ॥
Now there was one named Riksharajas, the father of Vali and Sugriva, who was king of all the vanaras and in splendor radiant as the sun.
english translation