Valmiki Ramayana Yuddha Kanda Sarga 56 Shloka 11
Original Shlokaअकम्पनस्तुशैलाभंहनूमन्तमवस्थितम् । महेन्द्रइवदाराभिश्शरैरभिववर्षह ।।6.56.11।।
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अकम्पनस्तु Akampana also, अवस्थितम् established, शैलाभम् like a mountain, हनूमन्तम् Hanumantha, धाराभिः torrents, महेन्द्रःइव like Indra, शरैः arrows, अभिनवर्षह showered rain.
On Akampana, who was well established like a mountain, mighty Hanuman showered torrents of arrows like Indra showered rain.