Valmiki Ramayana Kishkindha Kanda Sarga 55 Shloka 23

संविशद्भि: preparing to lay down, महाद्रिकूटप्रतिमैः as huge as mountain peaks, बहुभिः by many, प्लवङ्गमैः by monkeys, भृशम् greatly, सन्नादितनिर्दरान्तरः the sound that came from inside the cave, सः that, महीधरः mountain, नदद्भि: by the thundering, जलदैः with clouds, इव like, उल्बणैः stormy clouds, बभूव appeared.

While the numerous monkeys, resembling peaks of high mountains were roaring, it resounded through the mountain caves. It was like the sound of the stormy thunderclouds. इत्यार्षे श्रीमद्रामायणे वाल्मीकीय आदिकाव्ये किष्किन्धाकाण्डे पञ्चपञ्चाशस्सर्गः।। Thus ends the fiftyfifth sarga in Kishkindakanda of the first epic, the Holy Ramayana composed by sage Valmiki.