Chapter 9 · verse 27 · gita.yoga.org

Bhagavad Gita 9.27

यत्करोषि यदश्नासि यज्जुहोषि ददासि यत्। यत्तपस्यसि कौन्तेय तत्कुरुष्व मदर्पणम्

Whatever you do, whatever you eat, whatever you offer in sacrifice, whatever you give, whatever austerity you practice, O Arjuna, do it as an offering to Me.