Valmiki Ramayana 6.58.20

तेषामापततां शीघ्रं निघ्नतां चापि वानरान् ।द्विविदो गिरिशृङ्गेण जघानैकं नरान्तकम्॥

teṣāmāpatatāṃ śīghraṃ nighnatāṃ cāpi vānarān |dvivido giriśṛṅgeṇa jaghānaikaṃ narāntakam ||

Our plain-language meaning of this verse is waiting for scholar review.