At-Takwīr (Arabic: التكوير, literally "The Turning Into a Sphere") is the eighty-first chapter (sura) of the Qur'an, with 29 verses (ayat). It tells about signs of the coming of the day of judgement.
Summary
1-14 The terrible signs of the judgment-day
15-25 Oaths that the Quran is the word of Allah, and that Muhammad is neither a madman nor deluded by the devil
Imam Ahmad recorded from Ibn Umar that Muhammad said: "Whoever wishes to look at the Day of Resurrection, as if he is seeing it with this eye, then let him recite: ‘When the sun Kuwwirat’(At-Takwir) and ‘When the heaven is cleft sunder (Al-Infitar) and ‘When the heaven is split asunder.(Al-Inshiqaq)’”[4][5][6]
Umar ibn Horayth said: "I heard the Prophet (ﷺ) reciting: 'When the sun is wound round.' in fajr. (at-Takwir (81:1)) "[7]
^Wherry, Elwood Morris (1896). A Complete Index to Sale's Text, Preliminary Discourse, and Notes. London: Kegan Paul, Trench, Trubner, and Co. This article incorporates text from this source, which is in the public domain.