Valmiki Ramayana Sundara Kanda Sarga 51 Shloka 1
Original Shlokaतं समीक्ष्य महासत्त्वं सत्त्ववान्हरिसत्तमः। वाक्यमर्थवदव्यग्रस्तमुवाच दशाननम्।।5.51.1।।
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सत्त्ववान् courageous, हरिसत्तमः best of monkeys, महासत्त्वम् very powerful, तं दशाननम् the tenheaded, समीक्ष्य after observing, अव्यग्रम् slowly, अर्थवत् meaningful, वाक्यम् these words, तत् such, उवाच spoke.
Hanuman, the best of monkeys, looking at the very powerful Ravana spoke slowly these highly meaningful words. Hanuman tenders both sound advice and stern warning to Ravana.