Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Jnana-Karma-Sanyasa Yoga Chapter 4, Verse 4.23.
Sanskrit
गतसङ्गस्य मुक्तस्य ज्ञानावस्थितचेतसः । यज्ञायाचरतः कर्म समग्रं प्रविलीयते ॥ ४.२३ ॥
Hindi
जिसकी आसक्ति सर्वथा नष्ट हो गयी है, जो देहाभिमान और ममतासे रहित हो गया है, जिसका चित्त निरन्तर परमात्माके ज्ञानमें स्थित रहता है – ऐसा केवल यज्ञसम्पादनके लिये कर्म करनेवाले मनुष्यके सम्पूर्ण कर्म भलीभाँति विलीन हो जाते हैं|
English
Lord Krishna continued: A person who has no attachment to anything whatsoever in this world, whose heart is set on acquiring Gyan (wisdom), who works for the sake of sacrifice, and is a totally liberated person from the world, all actions for this person melt away and are meaningless.