Kautilya's Arthashastra 4.5.2

4.5.2

teṣāṃ kṛtotsāhānāṃ mahāntaṃ saṃgham ādāya rātrāv anyaṃ grāmam uddiśyānyaṃ grāmaṃ kṛtakastrīpuruṣaṃ gatvā brūyuḥ - "ihaiva vidyāprabhāvo dṛśyatāṃ, kṛcchraḥ paragrāmo gantum" iti //

On taking these enthusiasts thus induced to a village, where persons under the guise of women and men are previously stationed and which is different from the one intended to be reached, the youths may be told that it is difficult to reach in time the village aimed at and that the power of incantation may be seen then and there alone.