Arthashastra
दुर्ग राष्ट्र दूष्यान् वा सत्त्रिणः परस्परस्य आवेशनिकान् कारयेयुः ॥
Spies may induce seditious persons in forts or in country parts to be each other's guests at a dinner in which poisoners may administer poison.
english translation
durga rASTra dUSyAn vA sattriNaH parasparasya AvezanikAn kArayeyuH ॥
hk transliteration by Sanscript