Valmiki Ramayana 7.25.11

एतया किल सङ्ग्रामे मायया राक्षसेश्वर ।प्रयुक्तया गतिः शक्या नहि ज्ञातुं सुरासुरैः॥

etayā kila saṅgrāme māyayā rākṣaseśvara |prayuktayā gatiḥ śakyā nahi jñātuṃ surāsuraiḥ ||

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