Valmiki Ramayana Ayodhya Kanda Sarga 58 Shloka 22
Original Shlokaवक्तव्यश्च महाबाहुरिक्ष्वाकुकुलनन्दनः। पितरं यौवराज्यस्थो राज्यस्थमनुपालय।।2.58.22।।
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इक्ष्वाकुकुलनन्दनः delight of the race of Ikshvaku, महाबाहुः mightyarmed, वक्तव्यश्च deserves be told this way, यौवराज्यस्थः crowned as prince regent, राज्यस्थम् being in the kingdom, पितरम् father, अनुपालय rule the kingdom (by being obedient to him).