Ramayana
एतया किल सङ्ग्रामे मायया राक्षसेश्वर । प्रयुक्तया गतिः शक्या नहि ज्ञातुं सुरासुरैः ॥ 7-25-11 ॥
O lord of the rakshasas, when this illusion is employed in battle, its course cannot be discerned even by the gods and the asuras.
english translation