Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Atma-Samyama Yoga Chapter 5, Verse 5.12.
Sanskrit
युक्तः कर्मफलं त्यक्त्वा शान्तिमाप्नोति नैष्ठिकीम् । अयुक्तः कामकारेण फले सक्तो निबध्यते ॥ ५.१२ ॥
Hindi
कर्मयोगी कर्मोंके कर्मोंके फलका त्याग करके भगवत्प्राप्तिरूप शान्तिको प्राप्त होता है और सकाम पुरुष कामनाकी प्रेरणासे फलमें आसक्त होकर बँधता है|
English
When a Yogi has reached a state of true self-realization by leaving all fruits and results of Karma in the hands of the Lord, he achieves true peace and happiness.However, he who does Karma (actions) for a selfish motive and for the attainment of fruits of his actions, never becomes free of the bondages of desire for material pleasures.