Shiva Purana
वर्णास्तु भुवनैर्व्याप्तास्तेषां तेषूपलंभनात् ॥ भुवनान्यपि तत्त्वौघैरुत्पत्त्यांतर्बहिष्क्रमात् ॥ १४ ॥
The varṇas are pervaded by the varṇas, because they are perceived in them. The worlds are also created by the floods of elements, within and without.
english translation
varNAstu bhuvanairvyAptAsteSAM teSUpalaMbhanAt ॥ bhuvanAnyapi tattvaughairutpattyAMtarbahiSkramAt ॥ 14 ॥
hk transliteration by Sanscript