Bhagavad Gita Chapter 6 Verse 3
भगवद् गीता अध्याय 6 श्लोक 3

आरुरुक्षोर्मुनेर्योगं कर्म कारणमुच्यते।
योगारूढस्य तस्यैव शमः कारणमुच्यते।।6.3।।



English Translation - Dr. S. Sankaranarayan
6.3. For a sage, who is desirous of  mounting upon the Yoga, action is said to be the cause;  for the same [sage], when he has mounted upon the Yoga, ietude is said to be the cause.


English Translation of Commentary  - Dr. S. Sankaranarayan
6.3 Aruruksoh etc  for a sage :  For a man of wisdom.  Action :  that which reires to be performed. Cause  (1st) : a means to attain.  Quietude : to remain uninterrupted at the stage  [already]  achieved.  Here Cause  (2nd) is an indicator.		
 The same idea is made clear as-


Transliteration Bhagavad Gita 6.3Aarurukshormuneryogam karma kaaranamuchyate;
Yogaaroodhasya tasyaiva shamah kaaranamuchyate.


Word Meanings Bhagavad Gita 6.3ārurukṣhoḥ—a beginner; muneḥ—of a sage; yogam—Yog; karma—working without attachment; kāraṇam—the cause; uchyate—is said; yoga ārūḍhasya—of those who are elevated in Yog; tasya—their; eva—certainly; śhamaḥ—meditation; kāraṇam—the cause; uchyate—is said