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YUSUFALI : And the fifth (oath) (should be) that they solemnly invoke the curse of Allah on themselves if they tell a lie.

PICKTHAL : And yet a fifth, invoking the curse of Allah on him if he is of those who lie.

SHAKIR : And the fifth (time) that the curse of Allah be on him if he is one of the liars.

M& HILALI : And the fifth (testimony) (should be) the invoking of the Curse of Allah on him if he be of those who tell a lie (against her).