Arthashastra
सा एव पार्ष्णि ग्राह विगृहीता समन्ततो अर्थ संशय आपद् भवति ॥
When the acquirement of wealth from all sides is obstructed by an enemy in the rear, it takes the form of dangerous wealth involved in doubts.
english translation
sA eva pArSNi grAha vigRhItA samantato artha saMzaya Apad bhavati ॥
hk transliteration by Sanscript