Charak Samhita
पुरा प्रत्यक्षधर्माणं भगवन्तं पुनर्वसुम्। समेतानां महर्षीणां प्रादुरासीदियं कथा ॥३॥
॥ Symposium on origin of purusha: The objective of Symposium॥ Long ago, the great sages (thinkers) assembled before Lord Punarvasu (Atreya), who had directly perceived and realized all knowledge.
english translation
purA pratyakSadharmANaM bhagavantaM punarvasum। sametAnAM maharSINAM prAdurAsIdiyaM kathA ॥3॥
hk transliteration by Sanscript