Valmiki Ramayana Ayodhya Kanda Sarga 18 Shloka 40
Original Shlokaएतत्कुरु नरेन्द्रस्य वचनं रघुनन्दन। सत्येन महता राम तारयस्व नरेश्वरम्।।2.18.40।।
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रघुनन्दन O Joy of the Raghus, O son of the Raghu race, नरेन्द्रस्य king's, एतत् वचनम् this word of promise, कुरु carry out, राम Rama, महता सत्येन with your great truthfulness, नरेश्वरम् the king, तारयस्व save.
O Joy of the Raghus, O son of the Raghu race, carry out the word of promise given by the king and save him by helping him keep the truth which is great.