Bhagavatapurana 12.3.24

12.3.24

kalau tu dharma-pādānāṃ turyāṃśo 'dharma-hetubhiḥ /
edhamānaiḥ kṣīyamāṇo hy ante so 'pi vinaṅkṣyati //

24. But in the age of Kali only a fourth of those that support Dharma remains and that too, will decline, day by day, by the force of the growing causes of Adharma, and ultimately disappear altogether.