Valmiki Ramayana Kishkindha Kanda Sarga 4 Shloka 12
Original Shlokaअहमस्यावरो भ्राता गुणैर्दास्यमुपागतः। कृतज्ञस्य बहुज्ञस्य लक्ष्मणो नाम नामतः4.4.12।।
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अहम् I am, कृतज्ञस्य of the grateful man, बहुज्ञस्य of a wellversed man, अस्य his, गुणैः by virtues, दास्यम् servitude, उपागतः has accepted, अवरः younger, भ्राता brother, नामतः name, लक्ष्मणो नाम called Lakshmana
'I am his younger brother, called Lakshmana. I have accepted the service of this learned, virtuous and grateful man.