Chapter 2, Verse 50
Part of 2: Sānkhya Yog — सांख्ययोगबुद्धियुक्तो जहातीह उभे सुकृतदुष्कृते। तस्माद्योगाय युज्यस्व योगः कर्मसु कौशलम्॥
buddhi-yukto jahātīha ubhe sukṛita-duṣhkṛite tasmād yogāya yujyasva yogaḥ karmasu kauśhalam
Endowed with wisdom and evenness of mind, one casts off in this life both good and evil deeds; therefore, devote yourself to Yoga; Yoga is skill in action.
Work performed with motive towards fruits only can bind a man. It will bring the fruits and the performer of the action will have to take birth again in this mortal world to enjoy them. If work is performed with evennes of mind (the Yoga of wisdom, i.e., united to pure Buddhi, intelligence or reason) with the mind resting in the Lord, it will not bind him it will not bring any fruit it is no work at all. Actions which are of a binding nature lose that nature when performed with eanimity of mind, or poised reason. The Yogi of poised reason attributes all actions to the Divine Actor within (Isvara or God).