Shiva Purana
व्यासः पञ्चदशे त्रय्यारुणिर्वै द्वापरे यदा ॥ तदाहं भविता वेदशिरा वेदशिरस्तथा ॥ १२॥
Vyasa in the fifteenth and Triyaruni in the Dvapara Then I shall become the head of the Vedas and the head of the Vedas.
english translation
vyAsaH paJcadaze trayyAruNirvai dvApare yadA ॥ tadAhaM bhavitA vedazirA vedazirastathA ॥ 12॥
hk transliteration by Sanscript