An-Naml 27:5

Ola-ika allatheena lahum soo-oalAAathabi wahum fee al-akhirati humu al-akhsaroon

Those are the ones for whom there will be the worst of punishment, and in the Hereafter they are the greatest losers.

Those are the people who deserve the worst punishment and who are the worst losers in the Hereafter.