When greed, dissatisfaction, false pride, hypocrisy and envy become prominent, along with attraction for selfish activities, such a time is the age of Dvāpara, dominated by the mixed modes of passion and ignorance.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
यदा लोभस्त्वसन्तोषो मानो दम्भोऽथ मत्सरः । कर्मणां चापि काम्यानां द्वापरं तद्रजस्तमः
yadā lobhastvasantoṣo māno dambho'tha matsaraḥ | karmaṇāṃ cāpi kāmyānāṃ dvāparaṃ tadrajastamaḥ
SB 12.3.29