Arthashastra
कलत्र गर्भ्य् अन्तः शल्ययोः कलत्र गर्भि उन्मुच्य कलत्रं युध्येत, न अन्तः शल्यम् अन्तर मित्रम् ॥
Of soldiers who are either fond of their wives or are under an enemy, those who are fond of their wives may be taken to fight after separating them from their wives; but not those who are under an enemy, and are, therefore, like internal enemies.
english translation
kalatra garbhy antaH zalyayoH kalatra garbhi unmucya kalatraM yudhyeta, na antaH zalyam antara mitram ॥
hk transliteration by Sanscript