Shiva Purana
सिताभ्रशिखराकारः ककुदा परिशोभितः ॥ महाभोगींद्रकल्पेन वालेन च विराजितः ॥ ५४ ॥
It was in the shape of a white cloud peak and was adorned with a hip. He was illuminated by Vala who was like the great enjoyer Indra.
english translation
sitAbhrazikharAkAraH kakudA parizobhitaH ॥ mahAbhogIMdrakalpena vAlena ca virAjitaH ॥ 54 ॥
hk transliteration by Sanscript