PARADISE AND HELL H 402 "The Prophet, praise and peace be upon him, gave a sermon, the like of which Anas had never heard from him before. During it he said: 'If you knew what I know, you would laugh a little and weep a lot.' Thereupon those present covered their faces and sobbed." "Some news reached the Prophet, praise and peace be upon him, concerning his Companions so he addressed them saying: 'Paradise and Hell have been shown to me. I have never seen anything so good or so evil like them until this day. If you knew what I know, you would laugh a little and weep a lot.' That was the hardest day for the Companions - they covered their faces and wept loudly." R 402 Bukhari and Muslim, Anas who related this.
401- وعن أنس رضي الله عنه ، قَالَ : خطبنا رَسُول الله صلى الله عليه وآله وسلم خطبة مَا سَمِعْتُ مِثلها قطّ ، فَقَالَ : "لَوْ تَعْلَمُونَ مَا أعْلَمُ ، لَضحِكْتُمْ قَلِيلاً وَلَبَكَيتُمْ كَثِيراً" فَغَطَّى أصْحَابُ رَسُول الله صلى الله عليه وآله وسلم وَجُوهَهُمْ ، وَلَهُمْ خَنَينٌ . مُتَّفَقٌ عَلَيهِ . وفي رواية : بَلَغَ رَسُول الله صلى الله عليه وآله وسلم عَنْ أَصْحَابِهِ شَيْءٌ فَخَطَبَ ، فَقَالَ : "عُرِضَتْ عَلَيَّ الجَنَّةُ وَالنَّارُ ، فَلَمْ أرَ كَاليَومِ في الخَيرِ وَالشَّرِّ ، وَلَوْ تَعْلَمونَ مَا أعلَمُ لَضَحِكْتُمْ قَلِيلاً وَلَبَكَيْتُمْ كَثِيراً" فَمَا أتَى عَلَى أصْحَابِ رَسُول الله صلى الله عليه وآله وسلم يَوْمٌ أَشَدُّ مِنْهُ ، غَطَّوْا رُؤُسَهُمْ وَلَهُمْ خَنِينٌ . " الخَنِينُ" بالخاءِ المعجمة : هُوَ البُكَاءُ مَعَ غُنَّة وانتِشَاقِ الصَّوْتِ مِنَ الأنْفِ .