Valmiki Ramayana Kishkindha Kanda Sarga 66 Shloka 19
Original Shlokaमहासत्त्वो महातेजा महाबलपराक्रमः। लङ्घने प्लवने चैव भविष्यति हि मत्समः।।4.66.19।।
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महासत्त्वः very powerful, महातेजाः highly lustrous one, महाबलपराक्रमः of great valour and strength, लङ्घने in jumping, प्लवने चैव even in leaping, हि मत्समः similar to me, भविष्यति he will be.
'He will be very powerful, illustrious and will be of great valour and strength. He will be my equal in leaping and flying'.