Sahih Muslim 114
Sahih Muslim · Book 1: The Book of Faith · Emphatic prohibition against stealing from the spoils of war; and that no one will enter paradise except the believers
It is narrated on the authority of 'Umar b. Khattab that when it was the day of Khaibar a party of Companions of the Apostle (ﷺ) came there and said:
حَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ ، حَدَّثَنَا هَاشِمُ بْنُ الْقَاسِمِ ، حَدَّثَنَا عِكْرِمَةُ بْنُ عَمَّارٍ ، قَالَ حَدَّثَنِي سِمَاكٌ الْحَنَفِيُّ أَبُو زُمَيْلٍ ، قَالَ حَدَّثَنِي عَبْدُ اللَّهِ بْنُ عَبَّاسٍ ، قَالَ حَدَّثَنِي عُمَرُ بْنُ الْخَطَّابِ ، قَالَ لَمَّا كَانَ يَوْمُ خَيْبَرَ أَقْبَلَ نَفَرٌ مِنْ صَحَابَةِ النَّبِيِّ صلى الله عليه وسلم فَقَالُوا فُلاَنٌ شَهِيدٌ فُلاَنٌ شَهِيدٌ حَتَّى مَرُّوا عَلَى رَجُلٍ فَقَالُوا فُلاَنٌ شَهِيدٌ . فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " كَلاَّ إِنِّي رَأَيْتُهُ فِي النَّارِ فِي بُرْدَةٍ غَلَّهَا أَوْ عَبَاءَةٍ " . ثُمَّ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " يَا ابْنَ الْخَطَّابِ اذْهَبْ فَنَادِ فِي النَّاسِ إِنَّهُ لاَ يَدْخُلُ الْجَنَّةَ إِلاَّ الْمُؤْمِنُونَ " . قَالَ فَخَرَجْتُ فَنَادَيْتُ " أَلاَ إِنَّهُ لاَ يَدْخُلُ الْجَنَّةَ إِلاَّ الْمُؤْمِنُونَ " .
So and so is a martyr, till they happened to pass by a man and said: So and so is a martyr. Upon this the Messenger of Allah remarked: Nay, not so verily I have seen him in the Fire for the garment or cloak that he had stolen from the booty, Then the Messenger of Allah (ﷺ) said: Umar son of Khattab, go and announce to the people that none but the believers shall enter Paradise. He ('Umar b. Khattab) narrated: I went out and proclaimed: Verily none but the believers would enter Paradise.