Shiva Purana
एकविंशे युगे तस्मिन् व्यासो वाचःश्रवा यदा॥ तदाहं दारुको नाम तस्माद्दारुवनं शुभम् ॥ २८ ॥
In the twenty-first aeon when Vācaśśravas becomes Vyāsa, I shall be born as Dāruka. Hence the forest Dāruvana is auspicious.
english translation
ekaviMze yuge tasmin vyAso vAcaHzravA yadA॥ tadAhaM dAruko nAma tasmAddAruvanaM zubham ॥ 28 ॥
hk transliteration by Sanscript