Sahih Muslim | Book 1 | Hadith Number 206
Narrated by Sahl b. Sa'd al-Sa'idi
It is reported on the authority of Sahl b. Sa'd al-Sa'idi that there was an encounter between the Messenger of Allah (may peace be upon him) and the polytheists, and they fought (against one another). At the conclusion of the battle the Messenger of Allah (may peace be upon him) bent his steps towards his army and they (the enemies) bent their steps towards their army. And there was a person (his name was Quzman and he was one of the hypocrites) among the Companions of the Messenger of Allah (may peace be upon him) who did not spare a detached (fighter of the enemy) but pursued and killed him with the sword. They (the Companions of the Holy Prophet) said: None served us better today than this man Upon this the Messenger of Allah (may peace be upon him) remarked: Verily he is one of the denizens of Fire. One of the people (Muslims) said: I will constantly shadow him. Then this man went out along with him. He halted whenever he halted, and ran along with him whenever he ran. He (the narrator) said: The man was seriously injured. He (could not stand the pain) and hastened his own death. He placed the blade of the sword on the ground with the tip between his chest and then pressed himself against the sword and killed himself. Then the man (following him) went to theMessenger of Allah (may peace be upon him) and said: I bear testimony that verily thou art the Messenger of Allah, He (the Holy Prophet) said: What is the matter? He replied: The person about whom you just mentioned that he was one among the denizens of Fire and the people were surprised (at this) and I said to them that I would bring (the news about him) and consequently I went out in search of him till I (found him) to be very seriously injured. He hastened his death. He placed the blade of the sword upon the ground and its tip between his chest and then pressed himself against that and killed himself. Thereupon the Messenger of Allah (may peace be upon him) remarked: A person performs the deeds which to the people appear to be the deeds befitting the dweller of Paradise, but he is in fact one of the denizens of Hell. And verily a person does an act which in the eyes of public is one which is done by the denizens of Hell, but the person is one among the dwellers of Paradise.