Valmiki Ramayana Kishkindha Kanda Sarga 65 Shloka 14

सर्वान् all, तान् of the monkeys, हरिश्रेष्ठान् distinguished among the monkeys, जाम्बवान् Jambavan, पुनः again, अब्रवीत् said, मे my, गमने in leaping, पराक्रमः valour, एतावदेव only that much, न आसीत् खलु was not.

Jambavan, the distinguished among the monkeys again said, 'My strength to leap into the sky was not only that much (I was stronger in my youth and could cover longer distances)'