Verse 18

नादानं न परित्यागः कर्मणोऽज्ञाय रोचते ।तिष्ठन्त्यवगतात्मानो यथाप्राप्तानुवर्तिनः

In plain words

Neither the taking up nor the giving up of action appeals to the knower: those who have understood the Self simply abide, following along with whatever comes.