विनाशाय च दुष्कृताम् ।
सम्भवामि युगे युगे
vināśāya ca duṣkr̥tām ।
sambhavāmi yugē yugē
This shloka is from Bhagavad Gita, Chapter 4, Verse 8.
This was said by Bhagwan Sri Krishna to Arjuna.
For the protection of the virtuous, for the annihilation of the miscreants, and for reestablishing Dharma (righteousness) on a firm footing. I make Myself appear from age to age.