﴿ فَبَشِّرْهُم بِعَذَابٍ أَلِيمٍ ﴾

“Hence, give them the tiding of grievous suffering [in the life to come] –”

(So give them) so give, O Muhammad, to those who disbelieve in Allah (tidings of a painful doom) whose pain will extend to their hearts on the Day of Badr as well as in the Hereafter,