Manusmriti

siva.sh/manusmriti/7/191

संहतान् योधयेदल्पान् कामं विस्तारयेद् बहून् । सूच्या वज्रेण चैवैतान् व्यूहेन व्यूह्य योधयेत् ॥ १९१ ॥

sanskrit

Let him make a small number of soldiers fight in close order, at his pleasure let him extend a large number in loose ranks; or let him make them fight, arranging (a small number) in the needle-array, (and a large number) in the thunderbolt-array.

english translation

saMhatAn yodhayedalpAn kAmaM vistArayed bahUn | sUcyA vajreNa caivaitAn vyUhena vyUhya yodhayet || 191 ||

hk transliteration by Sanscript