﴿ وَبَيْنَهُمَا حِجَابٌۭ ۚ وَعَلَى ٱلْأَعْرَافِ رِجَالٌۭ يَعْرِفُونَ كُلًّۢا بِسِيمَىٰهُمْ ۚ وَنَادَوْا۟ أَصْحَٰبَ ٱلْجَنَّةِ أَن سَلَٰمٌ عَلَيْكُمْ ۚ لَمْ يَدْخُلُوهَا وَهُمْ يَطْمَعُونَ ﴾

“And between the two there will be a barrier. And there will be persons who [in life] were endowed with the faculty of discernment [between right and wrong], recognizing each by its mark. And they will call out unto the inmates of paradise, "Peace be upon you!"-not having entered it themselves, but longing [for it].”

It happens in the world that believers and those who deny the truth alike are recipients of both the bounties and the afflictions sent down by God. But, it will not be so in the Hereafter. There, a barrier will be set up between the two. There, the joys of the bounties savoured by the people of Paradise will not reach the people of Hell, and similarly the woes afflicting the people of Hell will not reach the people of Heaven.