Bhagavad Gita 3.12

For, fed by sacrifice, nature will give you all the enjoyment you desire. But he who enjoys what she gives without returning is, indeed, a thief.

इष्टान्भोगान्हि वो देवा दास्यन्ते यज्ञभाविताः।
तैर्दत्तानप्रदायैभ्यो यो भुङ्क्ते स्तेन एव सः॥

iṣṭānbhogānhi vo devā dāsyante yajñabhāvitāḥ|
tairdattānapradāyaibhyo yo bhuṅkte stena eva saḥ||

English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).