Sahih Bukhari 1895

حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ ، حَدَّثَنَا سُفْيَانُ ، حَدَّثَنَا جَامِعٌ ، عَنْ أَبِي وَائِلٍ ، عَنْ حُذَيْفَةَ ، قَالَ : قَالَ عُمَرُ رَضِيَ اللَّهُ عَنْهُ : مَنْ يَحْفَظُ حَدِيثًا عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي الْفِتْنَةِ ، قَالَ حُذَيْفَةُ : أَنَا سَمِعْتُهُ ، يَقُولُ : فِتْنَةُ الرَّجُلِ فِي أَهْلِهِ ، وَمَالِهِ ، وَجَارِهِ تُكَفِّرُهَا الصَّلَاةُ ، وَالصِّيَامُ ، وَالصَّدَقَةُ ، قَالَ : لَيْسَ أَسْأَلُ عَنْ ذِهِ ، إِنَّمَا أَسْأَلُ عَنِ الَّتِي تَمُوجُ كَمَا يَمُوجُ الْبَحْرُ ، قَالَ : وَإِنَّ دُونَ ذَلِكَ بَابًا مُغْلَقًا ، قَالَ : فَيُفْتَحُ أَوْ يُكْسَرُ ، قَالَ : يُكْسَرُ ، قَالَ : ذَاكَ أَجْدَرُ أَنْ لَا يُغْلَقَ إِلَى يَوْمِ الْقِيَامَةِ ، فَقُلْنَا لِمَسْرُوقٍ سَلْهُ : أَكَانَ عُمَرُ يَعْلَمُ مَنِ الْبَابُ ، فَسَأَلَهُ ، فَقَالَ : نَعَمْ ، كَمَا يَعْلَمُ أَنَّ دُونَ غَدٍ اللَّيْلَةَ .

Narrated Abu Wail from Hudhaifa: `Umar asked the people, Who remembers the narration of the Prophet about the affliction? Hudhaifa said, I heard the Prophet saying, 'The affliction of a person in his property, family and neighbors is expiated by his prayers, fasting, and giving in charity. `Umar said, I do not ask about that, but I ask about those afflictions which will spread like the waves of the sea. Hudhaifa replied, There is a closed gate in front of those afflictions. `Umar asked, Will that gate be opened or broken? He replied, It will be broken. `Umar said, Then the gate will not be closed again till the Day of Resurrection. We said to Masruq, Would you ask Hudhaifa whether `Umar knew what that gate symbolized? He asked him and he replied He (`Umar) knew it as one knows that there will be night before tomorrow, morning.