Bhagavad Gita 2.40 Chapter 2, Verse 40

नेहाभिक्रमनाशोऽस्ति प्रत्यवायो न विद्यते ।
स्वल्पमप्यस्य धर्मस्य त्रायते महतो भयात् ॥२.४०॥

nehābhikramanāśo'sti pratyavāyo na vidyate
svalpamapyasya dharmasya trāyate mahato bhayāt

Meaning

On this path no effort is wasted and there is no adverse result. Even a little practice of this dharma protects one from great fear.

Newly written by Bhajan Dhun — scholarly review in progress.

Reference: Bhagavad Gita 2.40 (Chapter 2, The Yoga of Knowledge (Sankhya Yoga), Verse 40)