Arthashastra
अथ अमित्र शासनं मुख्य उपघाताय प्रेषितम् उभय वेतनो ग्राहयेत् ॥
Then the recipient of salaries from the two states (the conqueror's and the enemy's state) may inform the suspected minister to destroy (the king).
english translation
atha amitra zAsanaM mukhya upaghAtAya preSitam ubhaya vetano grAhayet ॥
hk transliteration by Sanscript