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Surah 7. Al-A'raf
Ayah 52 - 53
52وَلَقَدْ جِئْنَـٰهُم بِكِتَـٰبٍ فَصَّلْنَـٰهُ عَلَىٰ عِلْمٍ هُدًى وَرَحْمَةً لِّقَوْمٍ يُؤْمِنُونَ
53هَلْ يَنظُرُونَ إِلَّا تَأْوِيلَهُۥ ۚ يَوْمَ يَأْتِى تَأْوِيلُهُۥ يَقُولُ ٱلَّذِينَ نَسُوهُ مِن قَبْلُ قَدْ جَآءَتْ رُسُلُ رَبِّنَا بِٱلْحَقِّ فَهَل لَّنَا مِن شُفَعَآءَ فَيَشْفَعُوا۟ لَنَآ أَوْ نُرَدُّ فَنَعْمَلَ غَيْرَ ٱلَّذِى كُنَّا نَعْمَلُ ۚ قَدْ خَسِرُوٓا۟ أَنفُسَهُمْ وَضَلَّ عَنْهُم مَّا كَانُوا۟ يَفْتَرُونَ
[52-53] We have brought to these people a Book which gives details based on knowledge36 and which is a guidance and blessing for those who believe.37 Now, are these people waiting for anything other than the consequence (of which they have been) warned in this Book?38 When the consequence will come before them, those very people who afore time had disregarded it, will say, "Indeed, the Messengers of our Lord had come with the Truth. Shall we have, then, any intercessors who will intercede for us? Or could we be sent back that we might do deeds different from those we did before?"39 They have, indeed, incurred heavy loss upon themselves and all the false things they had invented have forsaken them today.
36That is, "The Qur'an gives details of the reality and of the correct attitude man should adopt in the life of this world and of the basic principles of the Right Way of life. Then it may also be noted that these details an not based on guess-work or conjecture or whim but on pure and accurate knowledge."
37The Qur'an is `Guidance' because its teachings arc so clear that they show the right way to anyone who ponders over them. Moreover, the practical effects of that guidance can be seen in the lives of those who believe in it and follow its teachings. And it is really a great `blessing' because it brings a blessed change in the mental attitude, the moral out-look and the character of the one who accepts it. The truth of this was being proved by the wonderful changes that were taking place in the lives of the Companions of the Holy Prophet.
38In other words, it means: The distinction between right and wrong has been made clear in the most rational manner, but there are people who do not see it; they have the examples of those who have been totally changed for the better by following the Right Way, though they were just like them before this, yet they do not learn any lesson from this. Such people will admit their error only when they will suffer the consequences of their wrong ways.
Their case is similar to the case of a patient, who does not follow the advice of the physician, nor does he learn a lesson from the other patients, who regained their health by following the instructions of the physician, when they were suffering from the same disease. Such a patient will admit that the ways of life he was following were fatal but only on his death-bed.
39When they will see, with their own eyes, the consequences of the rejection of the Message of the Prophets, they will say, "Now that we have witnessed that reality, which we denied at the time, when the Messengers informed us about it, we will behave in a different way if we are sent back to the same world". For response to such a request, see VI: 27, 28; XIV: 44, 45; XXXII: 12, 13; XXXV: 37; XXXIX: 56-59;XL: 11, 12.