24:7
وَٱلْخَٰمِسَةُ أَنَّ لَعْنَتَ ٱللَّهِ عَلَيْهِ إِن كَانَ مِنَ ٱلْكَٰذِبِينَ
Wal khaamisatu anna la'natal laahi 'alaihi in kaana minal kaazibeen
And the fifth (oath) (should be) that they solemnly invoke the curse of Allah on themselves if they tell a lie.