﴿ سَيُهْزَمُ ٱلْجَمْعُ وَيُوَلُّونَ ٱلدُّبُرَ ﴾

“[Yet] the hosts [of those who deny the truth] shall be routed, and they shall turn their backs [in flight]!”

(The hosts) the hosts of the disbelieving (will all be routed) on the Day of Badr (and will turn and flee) defeated; this refers to Abu Jahl and his host, some of whom were killed on the Day of Badr and others defeated.