وَٱلۡخَٰمِسَةُ أَنَّ لَعۡنَتَ ٱللَّهِ عَلَيۡهِ إِن كَانَ مِنَ ٱلۡكَٰذِبِينَ
Waalkhamisatu anna laAAnata Allahi AAalayhi in kana mina alkathibeena
And the fifth (oath) (should be) that they solemnly invoke the curse of Allah on themselves if they tell a lie.