Valmiki Ramayana Sundara Kanda Sarga 1 Shloka 171
Original Shlokaअर्थसिद्ध्यै हरिश्रेष्ठ गच्छ सौम्य यथासुखम्। समानयस्व वैदेहीं राघवेण महात्मना।।5.1.171।।
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सौम्य O noble one, हरिश्रेष्ठ O best of vanaras, अर्थसिद्ध्यै for achieving your purpose, यथासुखम् with pleasure, गच्छ proceed, वैदेहीम् Vaidehi, महात्मना with the great self, राघवेण with Raghava, समानयस्व unite.
"O noble vanara proceed happily to achieve your purpose. Go and unite Vaidehi with the noble self, Raghava.