99:1
إِذَا زُلْزِلَتِ ٱلْأَرْضُ زِلْزَالَهَا ١
Saheeh International
When the earth is shaken with its [final] earthquake
Tafsir of "Ibn Kathir" (English)
The Day of Judgement, what will take place during it, the Condition of the Earth and the Condition of the People Ibn `Abbas said,إِذَا زُلْزِلَتِ الاَْرْضُ زِلْزَالَهَاWhen the earth quakes with its Zilzal.This means that it will move from beneath it. وَأَخْرَجَتِ الاْأَرْضُ أَثْقَالَهَا