Valmiki Ramayana Ayodhya Kanda Sarga 34 Shloka 31

तात dear child, Rama, अरिष्टम् auspicious, अव्यग्रम् without sorrows, अकुतोभयम् without threat (from any quarter), पन्थानम् path, श्रेयसे for your welfare, वृद्धये for prosperity, पुनः आगमनाय च and to return, गच्छस्व go.

Go, my dear child, wish you wellMay your path be auspicious, free from obstacles and fear (from any quarters). Come back (after fulfilment of the pledge)