وَقَالَ الَّذِينَ كَفَرُوا لَا تَأْتِينَا السَّاعَةُ ۖ قُلْ بَلَىٰ وَرَبِّي لَتَأْتِيَنَّكُمْ عَالِمِ الْغَيْبِ ۖ لَا يَعْزُبُ عَنْهُ مِثْقَالُ ذَرَّةٍ فِي السَّمَاوَاتِ وَلَا فِي الْأَرْضِ وَلَا أَصْغَرُ مِن ذَٰلِكَ وَلَا أَكْبَرُ إِلَّا فِي كِتَابٍ مُّبِينٍ (3)
(34:3) The unbelievers say: 'How come the Hour is not coming upon us!' *5 Say to them: 'Yes indeed, by my Lord, by Him Who fully knows the realm beyond the ken of perception, that the Hour shall inevitably come upon you. *6Nothing escapes Him, not even the smallest particle in the heavens or the earth; nor is anything smaller or bigger than that but is in a Manifest Book.' *7
*5) This they said satirically and mockingly. What they meant was: "This Prophet has been giving us the news of his coming of Resurrection for along tune now, but Resurrection has not overtaken us so far although we have openly denied and rejected him as a Prophet, have been insolent to him and have ridiculed him in every way."
*6) The use of the attribute "Knower of the unseen" for Allah while swearing by him by itself points to the fact that the coming of Resurrection is certain, but no one knows except AIlah, Knower of the unseen, when exactly it will come. This same theme has been explained at different places in the Qur'an in various ways. For details, see AI-A'raf: 187, Ta Ha: 15. Luqman: 34, Al-Ahzab: 63, Al-hulk: 25-26, An-Naziyat: 42-44.
*7) This is one of the arguments for the possibility of the Hereafter as is being stated in verse 7 below. One of the reasons why the deniers of the Hereafter regarded the life-after-death as irrational was ;' They said that when all human beings will have become dust after death, and scattered away in particles, how it will be possible to bring all the countless particles together and combine them to be re-created as the same human bodies once again. This doubt has been dispelled, saying, "Every particle wherever it is, is recorded in God's Register, and God knows where a particle is. Therefore, when He wills to recreate, He will not face any difficulty in gathering together all the particles of the body of each and every man. "