Valmiki Ramayana Yuddha Kanda Sarga 122 Shloka 30
Original Shlokaरामंशुश्रूषभद्रंतेसुमित्रानन्दवर्धन । रामस्सर्वस्यलोकस्यसुभेष्वभिरतःसदा ।।6.122.30।।
1 source checked for this shloka
सुमित्रानन्दवर्धन enhancer of Sumithra's joy, ते you, भद्रम् be auspicious, रामम् to Rama, शुश्रूष service, रामः Rama, सदा always, सर्वलोकस्य in all the worlds, सुभेषु good, अभिरतः will ever remain
"O Lakshmana, the enhancer of Sumithra's joy, 'Be auspicious. Rama will always remain good in the service of the three worlds."