Ali 'Imran 3:13

Qad kana lakum ayatun feefi-atayni iltaqata fi-atun tuqatilu fee sabeeli Allahiwaokhra kafiratun yarawnahum mithlayhim ra/yaalAAayni wallahu yu-ayyidu binasrihi manyashao inna fee thalika laAAibratan li-olee al-absar

Already there has been for you a sign in the two armies which met [in combat at Badr] - one fighting in the cause of Allāh and another of disbelievers. They saw them [to be] twice their [own] number by [their] eyesight. But Allāh supports with His victory whom He wills. Indeed in that is a lesson for those of vision.

“There was a sign for you in the two groups who confronted each other: One group fighting in the way of Allah, and the other disbelieving, seeing themselves as twice their number, with open eyes. And Allah gives strength with His help to whomsoever He wills. Indeed, there is a lesson therein for those who have eyes.”