Bhagavad Geeta Chapter 9 - The Royal Secret
27. Whatever you do,whatever you eat, whatever you offer in sacrifice, whatever you give in charity, whatever you practice as austerity,O Kaunteya! Do it as an offeringto me.
Verses 28, 29
28. Thus shall thou be freed from the bonds of actions yielding good and evil fruits; with the mind steadfast in the yoga of renunciation, and Liberated, thou shall come unto me.
29. The same am I to all beings; to me there is none hateful or dear; but those who worship me with devotion, are in me and I am also in them.