Bhagavad Gita 3.12

3.12 The gods, nourished by the sacrifice, will give you the desired objects. So, he who enjoys the objects given by the gods without offering (in return) to them, is verily a thief.

In charge of the various necessities of life, the demigods, being satisfied by the performance of yajña [sacrifice], will supply all necessities to you. But he who enjoys such gifts without offering them to the demigods in return is certainly a thief.