Sahih al-Bukhari 6493
Narrated Sa`d bin Sahl As-Sa`idi:
The Prophet (ﷺ) looked at a man fighting against the pagans and he was one of the most competent 
persons fighting on behalf of the Muslims. The Prophet (ﷺ) said, "Let him who wants to look at a man 
from the dwellers of the (Hell) Fire, look at this (man)." Another man followed him and kept on 
following him till he (the fighter) was injured and, seeking to die quickly, he placed the blade tip of 
his sword between his breasts and leaned over it till it passed through his shoulders (i.e., committed 
suicide)." The Prophet (ﷺ) added, "A person may do deeds that seem to the people as the deeds of the 
people of Paradise while in fact, he is from the dwellers of the (Hell) Fire: and similarly a person may 
do deeds that seem to the people as the deeds of the people of the (Hell) Fire while in fact, he is from 
the dwellers of Paradise. Verily, the (results of) deeds done, depend upon the last actions."
حَدَّثَنَا عَلِيُّ بْنُ عَيَّاشٍ، حَدَّثَنَا أَبُو غَسَّانَ، قَالَ حَدَّثَنِي أَبُو حَازِمٍ، عَنْ سَهْلِ بْنِ سَعْدٍ السَّاعِدِيِّ، قَالَ نَظَرَ النَّبِيُّ صلى الله عليه وسلم إِلَى رَجُلٍ يُقَاتِلُ الْمُشْرِكِينَ، وَكَانَ مِنْ أَعْظَمِ الْمُسْلِمِينَ غَنَاءً عَنْهُمْ فَقَالَ ‏"‏ مَنْ أَحَبَّ أَنْ يَنْظُرَ إِلَى رَجُلٍ مِنْ أَهْلِ النَّارِ فَلْيَنْظُرْ إِلَى هَذَا ‏"‏‏.‏ فَتَبِعَهُ رَجُلٌ فَلَمْ يَزَلْ عَلَى ذَلِكَ حَتَّى جُرِحَ، فَاسْتَعْجَلَ الْمَوْتَ‏.‏ فَقَالَ بِذُبَابَةِ سَيْفِهِ، فَوَضَعَهُ بَيْنَ ثَدْيَيْهِ، فَتَحَامَلَ عَلَيْهِ، حَتَّى خَرَجَ مِنْ بَيْنِ كَتِفَيْهِ‏.‏ فَقَالَ النَّبِيُّ صلى الله عليه وسلم ‏"‏ إِنَّ الْعَبْدَ لَيَعْمَلُ فِيمَا يَرَى النَّاسُ عَمَلَ أَهْلِ الْجَنَّةِ، وَإِنَّهُ لَمِنْ أَهْلِ النَّارِ، وَيَعْمَلُ فِيمَا يَرَى النَّاسُ عَمَلَ أَهْلِ النَّارِ وَهْوَ مِنْ أَهْلِ الْجَنَّةِ، وَإِنَّمَا الأَعْمَالُ بِخَوَاتِيمِهَا ‏"‏‏.‏