Valmiki Ramayana Kishkindha Kanda Sarga 16 Shloka 30

वनचारिणौ wanderers of the forest, तौ both of them, वानरौ monkeys, शोणिताक्तौ both with blood stains, परस्परम् at each other, महाशब्दैः producing loud sound, मेघाविव like two clouds, तर्जमानौ pointing at each other, युध्येताम् clashed

The monkeys, wanderers in the forest, both with blood stains fiercely clashed pointing at each other, roaring with dreadful sounds like two clouds.