Allah said,

[يَوْمَ يَجْمَعُكُمْ لِيَوْمِ الْجَمْعِ]

(The Day when He will gather you on the Day of Gathering,) meaning the Day of Resurrection. This is the Day when the earlier and later generations will all be gathered in one area, a caller would be heard by them all, and one's vision would easily see them all. Allah said,

[ذلِكَ يَوْمٌ مَّجْمُوعٌ لَّهُ النَّاسُ وَذَلِكَ يَوْمٌ مَّشْهُودٌ]

(That is the Day whereon mankind will be gathered together, that is a Day when all will be present.) (11:103), and,

[قُلْ إِنَّ الاٌّوَّلِينَ وَالاٌّخِرِينَ - لَمَجْمُوعُونَ إِلَى مِيقَـتِ يَوْمٍ مَّعْلُومٍ ]

(Say: "(Yes) verily, those of old, and those of later times. All will surely be gathered together for appointed meeting of a known Day.'') (56:49-50) Allah's statement,

[ذَلِكَ يَوْمُ التَّغَابُنِ]

(that will be the Day of At-Taghabun) Ibn `Abbas said, "It is one of the names of the Day of Judgement, and that is because the people of Paradise will have gained over the people of the Fire.'' Qatadah and Mujahid said similarly. Muqatil bin Hayyan said, "There is no mutual loss and gain greater than these entering Paradise and those being taken to the Fire.'' Allah explained His statement saying;

[يَوْمَ يَجْمَعُكُمْ لِيَوْمِ الْجَمْعِ ذَلِكَ يَوْمُ التَّغَابُنِ وَمَن يُؤْمِن بِاللَّهِ وَيَعْمَلْ صَـلِحاً يُكَفِّرْ عَنْهُ سَيِّئَـتِهِ وَيُدْخِلْهُ جَنَّـتٍ تَجْرِى مِن تَحْتِهَا الاٌّنْهَـرُ خَـلِدِينَ فِيهَآ أَبَداً ذَلِكَ الْفَوْزُ الْعَظِيمُ - وَالَّذِينَ كَفَرُواْ وَكَذَّبُواْ بِـَايَـتِنَآ أُوْلَـئِكَ أَصْحَـبُ النَّارِ خَـلِدِينَ فِيهَا وَبِئْسَ الْمَصِيرُ ]

(And whosoever believes in Allah and performs righteous deeds, He will expiate from him his sins, and will admit him to Gardens beneath which rivers flow (Paradise), to dwell therein forever; that will be the great success. But those who disbelieved and denied Our Ayat, they will be the dwellers of the Fire, to dwell therein forever. And worst indeed is that destination.) We explained these meanings several times before.

[مَآ أَصَابَ مِن مُّصِيبَةٍ إِلاَّ بِإِذْنِ اللَّهِ وَمَن يُؤْمِن بِاللَّهِ يَهْدِ قَلْبَهُ وَاللَّهُ بِكُلِّ شَىْءٍ عَلِيمٌ - وَأَطِيعُواْ اللَّهَ وَأَطِيعُواْ الرَّسُولَ فَإِن تَولَّيْتُمْ فَإِنَّمَا عَلَى رَسُولِنَا الْبَلَـغُ الْمُبِينُ - اللَّهُ لاَ إِلَـهَ إِلاَّ هُوَ وَعَلَى اللَّهِ فَلْيَتَوَكَّلِ الْمُؤْمِنُونَ ]

(11. No calamity occurs, but by the permission of Allah, and whosoever believes in Allah, He guides his heart. And Allah is the All-Knower of everything.) (12. Obey Allah, and obey the Messenger; but if you turn away, then the duty of Our Messenger is only to convey clearly.) (13. Allah! La ilaha illa Huwa. And in Allah therefore let the believers put their trust.)