Shiva Purana
सनत्कुमारेण च तत्समस्तं व्यासाय साक्षाद्गुरवे ममोक्तम् ॥ व्यासेन चोक्तं महितेन मह्यं मया च तद्वः कथितं समासात् ॥ ३७ ॥
Everything was imparted by Sanatkumāra to Vyāsa my direct preceptor who imparted the same to me and now I succinctly mention this to you.
english translation
sanatkumAreNa ca tatsamastaM vyAsAya sAkSAdgurave mamoktam ॥ vyAsena coktaM mahitena mahyaM mayA ca tadvaH kathitaM samAsAt ॥ 37 ॥
hk transliteration by Sanscript