Tafsir Ibn Kathir (abridged)
The Day of Judgement, its Pleasures and Hell, and that its Time is not known
Allah says,
فَإِذَا جَآءَتِ الطَّآمَّةُ الْكُبْرَى
(But when there comes the Great Catastrophe) This refers to the Day of Judgement. This has been said by Ibn `Abbas. It has been called this because it will overcome every matter. It will be frightful and horrifying. As Allah says,
وَالسَّاعَةُ أَدْهَى وَأَمَرُّ
(And the Hour will be more grievous and more bitter.) (54:46) Then Allah says,
يَوْمَ يَتَذَكَّرُ الإِنسَـنُ مَا سَعَى
(The Day when man shall remember what he strove for.) meaning, at that time the Son of Adam will reflect upon all of his deeds, both the good and the evil. This is as Allah says,
Continue reading the tafsir of ayahs 34–46