यज्ञार्थात्कर्मणोऽन्यत्र लोकोऽयं कर्मबन्धनः।
तदर्थं कर्म कौन्तेय मुक्तसंगः समाचर।।3.9।।
3.9 This man becomes bound by actions other than that action meant for God. Without being attached, O son of Kunti, you perform actions for Him.
3.9 The world is imprisoned by the bond of work only when work is done for personal ends, but not when work is performed or money acired for the purpose of sacrifice etc. prescribed in the scriptures. So, for the purpose of sacrifice, you must perform acts like the acisition of money. In doing so, overcome attachments generated by the pursuit of personal ambitions, and then do your work in the spirit of Yajna. When a person free from attachment does the work for the sake of sacrifices etc., the Supreme Person, propitiated by sacrifices etc., grants him the calm vision of the self after destroying the subtle impressions of his Karmas, which have continued from time without beginning. Sri Krsna stresses the need for sustenance of the body solely by the remnants of sacrifices in respect of those who are devoted to all ends of human life. He decries the sin of those who nourish the body by things other than the remnants of sacrifices:
Yajnaarthaat karmano’nyatra loko’yam karmabandhanah; Tadartham karma kaunteya muktasangah samaachara.
yajña-arthāt—for the sake of sacrifice; karmaṇaḥ—than action; anyatra—else; lokaḥ—material world; ayam—this; karma-bandhanaḥ—bondage through one’s work; tat—that; artham—for the sake of; karma—action; kaunteya—Arjun, the son of Kunti; mukta-saṅgaḥ—free from attachment; samāchara—perform properly
