Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Moksha-Sanyasa Yoga Chapter 18, Verse 18.9.
Sanskrit
कार्यमित्येव यत्कर्म नियतं क्रियतेऽर्जुन । सङ्गं त्यक्त्वा फलं चैव स त्यागः सात्त्विको मतः ॥ १८.९ ॥
Hindi
हे अर्जुन ! जो शास्त्र विहित कर्म करना कर्तव्य है — इसी भाव से आसक्ति और फल का त्याग करके किया जाता है —– वही सात्विक त्याग माना गया है ।
English
But, O son of Kunti, he who partakes in these holy tasks, O Arjuna, only because he knows that it is his duty to accomplish them, and at the same time forsakes all selfish desires and thoughts of receiving rewards, is considered by Me to be a man of ‘goodness.’ Because of performing his pure work, this man produces only peace, divine joy, and other SAATVIC results.