Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Moksha-Sanyasa Yoga Chapter 18, Verse 18.57.
Sanskrit
चेतसा सर्वकर्माणि मयि संन्यस्य मत्परः । बुद्धियोगमुपाश्रित्य मच्चित्तः सततं भव ॥ १८.५७ ॥
Hindi
सब कर्मों को मन से मुझ में अर्पण करके तथा सम बुद्भि रूप योग को अवलम्बन करके मेरे परायण और निरन्तर मुझ में चित्त वाला हो ।
English
O Arjuna, if one truly offers and dedicates, with his heart, all of his actions to Me, depending on Me for the results of his actions; realizes that the results of his actions lie in My hands alone; sees Me as the ultimate result of his love, devotion and meditation, in the end his soul combines with Mine for eternity.