Ramayana
दूतो ऽस्म्यतिबलस्याहं महर्षेरमितौजसः । रामं दिदृक्षुरायातः कार्येण हि महाबल ॥ 7-103-3 ॥
"I am the messenger of a great sage of immense strength and immeasurable energy. O mighty one, I have come, desiring to see Rama upon an errand."
english translation