Chapter IV Sloka 16

ik< kmR ikmkmeRit kvyae=Py maeihta>,
te kmR vyaim yJ}aTva maeyse=zu-at!

ki karma kimakarmeti 
kavayo'pyatra mohit |
tatte karma pravakymi 
yajjtv mokyase'ubht ( 4|16)||

What is action? What is inaction? As to this, even the wise are confused. Therefore, I shall teach thee such action (the nature of action and inaction) by knowing which thou shalt be liberated from the evil (of Samsara, the wheel of birth and death).