Manusmriti

siva.sh/manusmriti/7/165

एकाकिनश्चात्ययिके कार्ये प्राप्ते यदृच्छया । संहतस्य च मित्रेण द्विविधं यानमुच्यते ॥ १६५ ॥

sanskrit

Marching (to attack) is said to be twofold, (viz. that undertaken) by one alone when an urgent matter has suddenly arisen, and (that undertaken) by one allied with a friend.

english translation

ekAkinazcAtyayike kArye prApte yadRcchayA | saMhatasya ca mitreNa dvividhaM yAnamucyate || 165 ||

hk transliteration by Sanscript