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I.e., the Last Hour (see note [1] on 101:1 . For particulars of the pre-Islamic tribes of 'Ad and Thamud, see {7:65-79} and the corresponding notes.
The Striking Disaster is another name for the Day of Judgment.
For these two peoples of antiquity, see n. 1043 to vii. 73, and n. 1040 to vii. 65.
Another description of the terrible Day of Judgment. This word Qari'a also occurs as the title of S. ci.