Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Moksha-Sanyasa Yoga Chapter 18, Verse 18.24.
Sanskrit
यत्तु कामेप्सुना कर्म साहंकारेण वा पुनः । क्रियते बहुलायासं तद्राजसमुदाहृतम् ॥ १८.२४ ॥
Hindi
परन्तु जो कर्म बहुत परिश्रम से युक्त्त होता है तथा भोगों को चाहने वाले पुरुष द्वारा या अहंकार युक्त्त पुरुष द्वारा किया जाता है, वह कर्म राजस कहा गया है ।
English
But when any task is completed with selfish desires in mind, looked upon as an effort and nothing more, looked upon as if it was a great sacrifice to have completed a task, this type of work is impure and only performed by Rajas-natured people.