Surah 27. An-Naml

6Nothing definite has been said about the form, time and place of this "evil chastisement." For it is imposed in this world also on different persons and groups and' nations in countless different ways; a part of it is also experienced by the wicked when they are about to leave the world; man experiences it also in the intermediary state between death and Resurrection; and then after Resurrection it will become endless and everlasting.

7That is, the things being mentioned in the Qur'an are not imaginary nor are they based on the presumptions and opinions of a man, but they are being revealed by the One Who is All-Wise and All-Knowing, Who is perfect in Wisdom and Knowledge, Who has full knowledge of the affairs of His creation and of its past and present and future, and Whose Wisdom devises the best schemes for the reform and guidance of His servants.