An-Nur - 24:7

وَالْخَامِسَةُ أَنَّ لَعْنَتَ اللَّهِ عَلَيْهِ إِن كَانَ مِنَ الْكَاذِبِينَ وَيَدْرَأُ
[24:7]
And the fifth (time) that the curse of Allah be on him if he is one of the liars.
And the fifth (oath) (should be) that they solemnly invoke the curse of Allah on themselves if they tell a lie.
And yet a fifth, invoking the curse of Allah on him if he is of those who lie.