Valmiki Ramayana Yuddha Kanda Sarga 94 Shloka 19

तदा then, प्रविष्टम् entered, शराग्निना like fire of arrows, निर्दहन्तम् consuming, रामम् Rama, महाघोराः most dreadful, अम्बरे sky, मेघाः clouds, सूर्यमिव like sun, नाधिजग्मुःnot approach

Then Rama entered the army with fire like arrows which were consuming the Rakshasas like the clouds in the sky which can't approach the scorching Sun.