द्वापरयुग
Dvapara-yuga is the third of the four ages, in which dharma stands on two legs: the era of Vyasa's birth (as a portion of Hari) and the Mahabharata war. SB 1.4.14: 'dvāpare samanuprāpte tṛtīye yuga-paryaye'.
Śrīmad Bhāgavata Mahāpurāṇa 1.4.14 — Sanskrit Wikisource (pinned oldid=110175)
'Dvāpare samanuprāpte tṛtīye yuga-paryaye' (SB 1.4.14).