Arthashastra
वैदेहक व्यञ्जनो वा प्रभूत पण्य अन्तेवासी व्यवहरेत ॥
Or one of the king's spies in the garb of a merchant, may become a partner of a rich merchant and carry on trade in concert with him.
english translation
vaidehaka vyaJjano vA prabhUta paNya antevAsI vyavahareta ॥
hk transliteration by Sanscript