Valmiki Ramayana Yuddha Kanda Sarga 55 Shloka 21
Original Shlokaशब्दश्चसुमहांस्तेषांनर्दतामभिधावताम् ।।6.55.21।। श्रूयतेतुमुलोयुद्धेनरूपाणिचकाशिरे ।
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नर्धताम् rushing, अभिधावताम् one over the other, तेम् their, सुमहां great, तुमुलः terrific, शब्दश्च sound, युद्धे in war, श्रूयते was heard, रूपाणि forms, नचकाशिरे not discernible.
As they were rushing over one another, terrific noise was heard, and no form was discernible.