Valmiki Ramayana Ayodhya Kanda Sarga 89 Shloka 19
Original Shlokaसवैजयन्तास्तु गजा गजारोहप्रचोदिताः। तरन्त स्स्म प्रकाशन्ते सध्वजा इव पर्वताः।।2.89.19।।
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सवैजयन्ताः embellished with banners, गजारोहप्रचोदिताः goaded by their mahouts, गजाः the elephants, तरन्तः while crossing the water, सध्वजाः with flags, पर्वताः इव like mountains, प्रकाशन्ते स्म were shining.
The elephants, embellished with banners and goaded by their mahouts looked splendid like mountains with banners while crossing in the water.