There has already been a sign for you in the two communities that encountered, (The reference is to the Battle of Badr) one community fighting in the way of Allah and another disbelieving. They saw them twice the like of them, as the eye sees, (Literally: as the sight of the eye) and Allah aids with His victory whomever He decides. Surely in that is indeed a lesson for the ones endowed with beholdings. (Literally: eyesights).