Arthashastra
दण्डवतो मित्रं मित्र भावे तिष्ठति, अमित्रो वा मित्र भावे ॥
the ally of him who has a powerful army keeps the alliance; and even the enemy assumes a friendly attitude
english translation
daNDavato mitraM mitra bhAve tiSThati, amitro vA mitra bhAve ॥
hk transliteration by Sanscript