Valmiki Ramayana Kishkindha Kanda Sarga 50 Shloka 11
Original Shlokaसंञ्जातपरिशङ्कास्ते तद्बिलं प्लवगोत्तमाः।।4.50.11।। अभ्यपद्यन्त संहृष्टास्तेजोवन्तो महाबलाः।
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तेजोवन्तः brilliant, महाबलाः forces, ते those, प्लवगोत्तमाः best of the monkeys, सञ्जातपरिशङ्काः afraid, संहृष्टाः they felt happy, तत् बिलम् that cave, अभ्यपद्यन्त that was difficult to enter.
The brilliant host of monkeys experienced both fear and joy to see the cave difficult to enter.