कर्मंयेवाधिकरास्ते मा फलेषु कदाचन ।
मा कर्मफलहेतुर्भूर्म ते संगोऽस्तविकर्मणि । ।
यदा यदा हि धर्मस्य ग्लानिर्भवति भारत। अभ्युत्थानमधर्मस्य तदात्मानं सृजाम्यहम् । ।
Thy business is with the action only, never with its fruits; so let not the fruits of action be thy motive, nor be thou to inaction attached.
Whenever, wherever there is a decline in righteous practice and a predominant rise of crime, O descendant of Bharata, at that time thou shall descend upon Earth.