Surah 43. Az-Zukhruf, Ayah 67

I.e., they will hate one another - those who realize that they have been led astray by their erstwhile friends, and the latter, because they see that they will be held responsible for the sins of those whom they have led astray.

The hatred and spite, which are associated with evil, will be felt with peculiar intensity in that period of agony. That itself would be a punishment, from which the righteous will be free. The righteous will have passed all perils of falling into wrong frames of mind.