sa rāmaṅ yuvarājānamabhiṣiñcisva pārthivam৷৷2.2.21৷৷
Translation
pārthiva O mighty king! tvam you, anēkavarṣasāhasra: many thousands of years old, vṛddha: asi have become old, sa: such as you are, rāmam Rama, pārthivam as ruler of the earth, yuvarājānam as prince regent, abhiṣiñcisva coronate him.
O mighty king!, you have grown many thousands of years old. Therefore, you should coronate Rama as prince regent of this kingdom.