How does it happen?
Al-Kāfi|Volume 8|Book 1|Chapter 490
عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ خَالِدٍ عَنْ إِسْمَاعِيلَ بْنِ مِهْرَانَ عَنْ سَيْفِ بْنِ عَمِيرَةَ عَنْ بَشِيرٍ النَّبَّالِ عَنْ حُمْرَانَ بْنِ أَعْيَنَ قَالَ قُلْتُ لِأَبِي جَعْفَرٍ (عليه السلام) يَقُولُ النَّاسُ تُطْوَى لَنَا الْأَرْضُ بِاللَّيْلِ كَيْفَ تُطْوَى قَالَ هَكَذَا ثُمَّ عَطَفَ ثَوْبَهُ.
490. A number of our companions, Ahmad Bin Muhammad Bin Khalid, from Ismail Bin Mahraan, from Sayf Bin Umeyra, from Basheer Al-Nabaal, from Humraan Bin Ayn who said: I said to Abu Ja’far عليه الصلاة والسلام, ‘The people are saying the earth would fold up for us at night, how it would fold up?’ He عليه الصلاة والسلام said: ‘Like this’, then folded his عليه الصلاة والسلام cloth’.
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (16/412)
- Ṣaḥīḥ al-Kāfī, vol. 3, p. 405