Chapter 2 · verse 40 · gita.yoga.org

Bhagavad Gita 2.40

नेहाभिक्रमनाशोऽस्ति प्रत्यवायो न विद्यते। स्वल्पमप्यस्य धर्मस्य त्रायते महतो भयात्

In this, there is no loss of effort, nor is there any harm produced, nor any transgression. Even a little of this knowledge protects one from great fear.