Masruq reported that there came to Abdullah a person and said: I have left behind in the mosque a man who explains the Qur'an according to his personal discretion and he explained this verse:" So wait for the day when the Heaven brings a clear smoke." He says that a smoke would come to the people on the Day of Resurrection anl it will withhold breath and they would be inflicted with cold. 'Abdullah said: He who has knowledge should say something and he who has no knowledge should simply say: Allah is best aware. This reflects the understanding of a person that he should say about that which he does not know that it is Allah who knows best. The fact is that when the Quraish disobeyed Allah's Apostle ﷺ he supplicated Allah that they should be afflicted with famine and starvation as was done in case of Yusuf. And they were so much hard pressed that a person would ace the sky and he would see between him and the sky something like smoke and they were so much hard pressed that they began to cat the bones, and a person came to Allah's Apostle ﷺ and said: Allah's Messenger. seek forgiveness for the tribe of Mudar for (its people) have been undone. The Messenger ﷺ said: For Mudar? You are overbold, but he supplicated Allah for them. It was upon this that this verse was revealed:" We shall remove the chastisement a little, but they will surely return to evil" (xliv. 15). lie (the narrator) said: There was a downpoor of rain upon them. When there was some relief for them they returned to the same position as they had been before, and Allah, the Exalted and Glorious, revealed this verse:" So wait for the day when the heaven brings a clear smoke enveloping people. This is a grievous torment on the day when We seize them with the most violent seizing;
surely, We shall exact retribution." And this (seizing) implied (Battle) of Badr.

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، وَوَكِيعٌ، ح وَحَدَّثَنِي أَبُو سَعِيدٍ،
الأَشَجُّ أَخْبَرَنَا وَكِيعٌ، ح وَحَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا جَرِيرٌ، كُلُّهُمْ عَنِ الأَعْمَشِ، ح
وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، وَأَبُو كُرَيْبٍ - وَاللَّفْظُ لِيَحْيَى - قَالاَ حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ،
عَنْ مُسْلِمِ بْنِ صُبَيْحٍ، عَنْ مَسْرُوقٍ، قَالَ جَاءَ إِلَى عَبْدِ اللَّهِ رَجُلٌ فَقَالَ تَرَكْتُ فِي الْمَسْجِدِ
رَجُلاً يُفَسِّرُ الْقُرْآنَ بِرَأْيِهِ يُفَسِّرُ هَذِهِ الآيَةَ { يَوْمَ تَأْتِي السَّمَاءُ بِدُخَانٍ مُبِينٍ} قَالَ يَأْتِي
النَّاسَ يَوْمَ الْقِيَامَةِ دُخَانٌ فَيَأْخُذُ بِأَنْفَاسِهِمْ حَتَّى يَأْخُذَهُمْ مِنْهُ كَهَيْئَةِ الزُّكَامِ . فَقَالَ عَبْدُ
اللَّهِ مَنْ عَلِمَ عِلْمًا فَلْيَقُلْ بِهِ وَمَنْ لَمْ يَعْلَمْ فَلْيَقُلِ اللَّهُ أَعْلَمُ فَإِنَّ مِنْ فِقْهِ الرَّجُلِ أَنْ يَقُولَ لِمَا
لاَ عِلْمَ لَهُ بِهِ اللَّهُ أَعْلَمُ . إِنَّمَا كَانَ هَذَا أَنَّ قُرَيْشًا لَمَّا اسْتَعْصَتْ عَلَى النَّبِيِّ صلى الله عليه
وسلم دَعَا عَلَيْهِمْ بِسِنِينَ كَسِنِي يُوسُفَ فَأَصَابَهُمْ قَحْطٌ وَجَهْدٌ حَتَّى جَعَلَ الرَّجُلُ يَنْظُرُ إِلَى
السَّمَاءِ فَيَرَى بَيْنَهُ وَبَيْنَهَا كَهَيْئَةِ الدُّخَانِ مِنَ الْجَهْدِ وَحَتَّى أَكَلُوا الْعِظَامَ فَأَتَى النَّبِيَّ صلى
الله عليه وسلم رَجُلٌ فَقَالَ يَا رَسُولَ اللَّهِ اسْتَغْفِرِ اللَّهَ لِمُضَرَ فَإِنَّهُمْ قَدْ هَلَكُوا فَقَالَ " لِمُضَرَ
إِنَّكَ لَجَرِيءٌ " . قَالَ فَدَعَا اللَّهَ لَهُمْ فَأَنْزَلَ اللَّهُ عَزَّ وَجَلَّ { إِنَّا كَاشِفُو الْعَذَابِ قَلِيلاً إِنَّكُمْ
عَائِدُونَ} قَالَ فَمُطِرُوا فَلَمَّا أَصَابَتْهُمُ الرَّفَاهِيَةُ - قَالَ - عَادُوا إِلَى مَا كَانُوا عَلَيْهِ -
قَالَ - فَأَنْزَلَ اللَّهُ عَزَّ وَجَلَّ { فَارْتَقِبْ يَوْمَ تَأْتِي السَّمَاءُ بِدُخَانٍ مُبِينٍ * يَغْشَى النَّاسَ
هَذَا عَذَابٌ أَلِيمٌ} { يَوْمَ نَبْطِشُ الْبَطْشَةَ الْكُبْرَى إِنَّا مُنْتَقِمُونَ} قَالَ يَعْنِي يَوْمَ بَدْرٍ .