Valmiki Ramayana Kishkindha Kanda Sarga 25 Shloka 11

हरियूथपः chief of monkeys, याम् whichever, गतः has gone, एषा this, नियतिः destiny, श्रेष्ठा वै is the very best, तत् therefore, परितापेन to regret, अलम् no need of, प्राप्तकालम् at this time, उपास्यताम् attend.

'The state attained by the chief of monkeys is an excellent one.Therefore there is no need to regret. Attend to your duties (relating to rites)'