Valmiki Ramayana Kishkindha Kanda Sarga 28 Shloka 50

शीघ्रप्रवेगाः fast flow, विपुलाः huge, गिरीणाम् of the mountains, निर्धौतशृङ्गोपतलाः washing the surroundings of the mountain peaks, मुक्ताकलापप्रतिमाः like the chains of pearls, पतन्तः while falling, प्रपाताः waterfalls, महागुहोत्सङ्गतलैः by the laps of huge caves, ध्रियन्ते collected.

'The fast flow of waterfalls spread over vast areas completely wash the surroundings of the mountain peaks. It appears like chains of pearls collected in the lap of huge caves.