Al-Ahzab 33:66

<h2>No One knows when the Day of Resurrection will come except Allah</h2><p>Here Allah tells His Messenger that he cannot know when the Hour will come, and if people ask him about that, He instructs him to refer the matter to Allah, may He be exalted, as Allah says in Surat Al-A`raf, even though that was revealed in Makkah and this Surah was revealed in Al-Madinah. Allah continues to tell him to refer this matter to the One Who knows about it, but He tells him that it is at hand, as He says:</p><div class="arabic uthmani">وَمَا يُدْرِيكَ لَعَلَّ السَّاعَةَ تَكُونُ قَرِيباً</div><p>(What do you know It may be that the Hour is near!) This is like the Ayat:</p><div class="arabic uthmani">اقْتَرَبَتِ السَّاعَةُ وَانشَقَّ الْقَمَرُ </div><p>(The Hour has drawn near, and the moon has been cleft asunder.) 54:1</p><div class="arabic uthmani">اقْتَرَبَ لِلنَّاسِ حِسَـبُهُمْ وَهُمْ فِى غَفْلَةٍ مُّعْرِضُونَ </div><p>(Draws near for mankind their reckoning, while they turn away in heedlessness.) 21:1</p><div class="arabic uthmani">أَتَى أَمْرُ اللَّهِ فَلاَ تَسْتَعْجِلُوهُ</div><p>(The Event (the Hour) ordained by Allah will come to pass, so seek not to hasten it) 16:1.</p><h2>The Curse on the Disbelievers and its Eternity and their Regret</h2><p>Then Allah says:</p><div class="arabic uthmani">إِنَّ اللَّهَ لَعَنَ الْكَـفِرِينَ</div><p>(Verily, Allah has cursed the disbelievers,) …

On the day when their faces are turned over in the Fire, they say: Oh, would that we had obeyed Allah and had obeyed His messenger!

The Day that their faces will be turned upside down in the Fire, they will say: "Woe to us! Would that we had obeyed Allah and obeyed the Messenger!"

On the Day when their faces will be turned over in the Fire, they will say: "Oh, would that we had obeyed Allah and obeyed the Messenger (Muhammad SAW)."

The Day when their faces are flipped into the Fire, they will say, “If only we had obeyed God and obeyed the Messenger.”