Bhagavad Gita Chapter 9.27
yat karoṣi yad aśnāsi
yaj juhoṣi dadāsi yat
yat tapasyasi kaunteya
tat kuruṣva mad-arpaṇam
Translation
Whatever you do, whatever you eat, whatever you offer or give away, and whatever austerities you perform—do that, O son of Kunti, as an offering to Me.