حَدَّثَنَا مُحَمَّدُ بْنُ عُبَيْدِ اللَّهِ ، قَالَ : حَدَّثَنَا إِبْرَاهِيمُ بْنُ سَعْدٍ ، عَنْ صَالِحٍ ، عَنِ ابْنِ شِهَابٍ ، عَنْ أَبِي أُمَامَةَ بْنِ سَهْلِ ، أَنَّهُ سَمِعَ أَبَا سَعِيدٍ الْخُدْرِيَّ ، يَقُولُ : قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ : بَيْنَا أَنَا نَائِمٌ رَأَيْتُ النَّاسَ يُعْرَضُونَ عَلَيَّ ، وَعَلَيْهِمْ قُمُصٌ مِنْهَا مَا يَبْلُغُ الثُّدِيَّ وَمِنْهَا مَا دُونَ ذَلِكَ ، وَعُرِضَ عَلَيَّ عُمَرُ بْنُ الْخَطَّابِ وَعَلَيْهِ قَمِيصٌ يَجُرُّهُ ، قَالُوا : فَمَا أَوَّلْتَ ذَلِكَ يَا رَسُولَ اللَّهِ ، قَالَ : الدِّينَ .
The Messenger of Allah, peace and blessings be upon him, said: "Once I was sleeping, I saw in a dream that people were being presented before me and they were wearing clothes." Someone's kurta is up to the chest and someone's is lower than that. (Then) Umar bin Al-Khattab was brought before me. On (his body) (which) was the Kurta. They were dragging him. (That is, his kurta was low to the ground) The Companions asked, O Messenger of Allah! What is the meaning of this? He said that (by this) religion is meant.
Sahih Bukhari
Hadeeth No #23