Shiva Purana

siva.sh/siva-purana/saturda-samhita/4/5

युगप्रवृत्त्या च तदा तस्मिंश्च प्रथमे युगे ।। द्वापरे प्रथमे ब्रह्मन्यदा व्यासः स्वयंप्रभुः ।।५।।

sanskrit

By the initiation of the ages then and in that first age In the first Dvapara, O Brahman, when Vyasa was the self-master.

english translation

yugapravRttyA ca tadA tasmiMzca prathame yuge || dvApare prathame brahmanyadA vyAsaH svayaMprabhuH ||5||

hk transliteration by Sanscript