Meaning
Supreme God Krishna spoke
True inner peace graces him who is attached to God but unattached to his actions and their fruits. Conversely, the one unattached to God and instead fixated on the fruits of their efforts driven by desires, falls into the fetters {of reincarnation}. (5:12)
Sanskrit
श्रीभगवान् उवाच
युक्तः कर्मफलं त्यक्त्वा शान्तिमाप्नोति नैष्ठिकीम् ।
अयुक्तः कामकारेण फले सक्तो निबध्यते॥
Word-by-word
युक्तः, कर्म-फलम् त्यक्त्वा, शान्तिम् आप्नोति नैष्ठिकीम्,
अ-युक्तः काम-कारेण, फले सक्तः नि-बध्यते।