Valmiki Ramayana Yuddha Kanda Sarga 41 Shloka 87

तदा then, सःअङ्गदः that Angada, बाहुद्वयसक्तान् holding the arms, तान् from that, पतगानिव like birds, आदाय came, शैलसङ्काशम् which stood like a mountain peak, प्रासादम् palace, उत्पपात came down.

Then Angada holding the Rakshasas by his arms came down like birds on the roof of the palace which stood like a mountain.