Bhagavatapurana 6.8.19

6.8.19

dvaipāyano bhagavān aprabodhād buddhastu pāṣaṇḍagaṇapramādāt /
kalkiḥ kaleḥ kālamalāt prapātu dharmāvanāyorukṛtāvatāraḥ //

19. May the glorious Dwaipayana guard me against ignorance and Bhuddha from the troops of miscreants and from error; may Kalki specially protect me from Kali who is the embodiment of all the dirt of time, and who has made a great avatar (has specially appeared in the world) for the protection of righteousness!