Chapter 18 · verse 5 · gita.yoga.org
Bhagavad Gita 18.5
यज्ञदानतपःकर्म न त्याज्यं कार्यमेव तत्।यज्ञो दानं तपश्चैव पावनानि मनीषिणाम्
Acts of sacrifice, gift, and austerity should not be abandoned, but should be performed; for sacrifice, gift, and austerity are the purifiers of the wise.