Ramayana
स निर्ययौ जनौघेन महता केकयाधिपः । त्वरमाणो ऽभिचक्राम गन्धर्वान्कामरूपिणः ॥ 7-101-2 ॥
That lord of the Kekayas set forth with a great host of people and, making haste, marched against the Gandharvas who could take any form at will.
english translation