Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Karma Yoga Chapter 3, Verse 3.3.
Sanskrit
श्रीभगवानुवाच । लोकेऽस्मिन्द्विविधा निष्ठा पुरा प्रोक्ता मयानघ ज्ञानयोगेन सांख्यानां कर्मयोगेन योग…
Hindi
श्रीभगवान् बोले– हे निष्पाप ! इस लोकमें दो प्रकारकी निष्ठा’ मेरेद्वारा पहले कही गयी है । उनमेंसे सांख्ययोगियोंकी निष्ठा तो ज्ञानयोगसे और योगियोंकी निष्ठा कर्मयोगसे होती है|
English
The Blessed Lord replied : O Arjuna, always remember in life that there are only two definite paths of action as I have described before. One of these is known as Sankhyayoga or the path of knowledge, and the other is Karmayoga, or the path of performing duty and action without expecting any result.