Arthashastra
प्रतिपन्नम् उभयतः-सम्पीडनेन घातयेत्, जीव-ग्राहेण वा राज्य-विनिमयं कारयेत् ॥
Accordingly, when the enemy comes out, he may be hemmed between the two forces (the conqueror's force and the pretending friend's force) and killed or captured alive to distribute his territory (between the conqueror and the friend).
english translation
pratipannam ubhayataH-sampIDanena ghAtayet, jIva-grAheNa vA rAjya-vinimayaM kArayet ॥
hk transliteration by Sanscript