The Evil Deeds that Lead one to Hell

Sheikh al-Islam Ibn Taymiyah, may Allah have mercy on him, was asked: "What are the deeds of the people of Hell, and what are the deeds of the people of Paradise?"

He replied: "The deeds of the people of Hell are:

associating partners with Allah
disbelieving in His Messengers
kufr (ingratitude, disbelief)
hasad (malicious envy)
lying
treachery
oppression and wrongdoing (dhulm)
promiscuity
backstabbing
cutting off the ties of kinship
cowardice at the time of jihad
miserliness
inconsistency between what is in one’s heart and the face one shows to people
despairing of the mercy of Allah
feeling secure from the plan of Allah
panicking blindly at the time of crisis
pride and extravagance at the time of plenty
abandoning one’s duties towards Allah
transgressing His limits
violating His sanctity
fearing a created being instead of the Creator
showing off
going against the Qur’an and Sunnah in word or deed
obeying a created being in some act of disobedience to the Creator
blindly supporting falsehood
mocking the Signs of Allah
rejecting the truth
withholding knowledge and testimony that should be revealed
witchcraft and magic
disobeying one’s parents
killing any soul forbidden by Allah except for reasons of justice
consuming the wealth of the orphan
riba (usury)
desertion from the battlefield
slandering the reputation of innocent, chaste, believing women." [Yaqadhat uli al-I`tibar, p. 222]
The Messenger, sallallahu `alaihi wa sallam, mentioned all the sins that will lead one to Hell. Muslim reports from `Iyaad ibn Himaar that the Messenger of Allah, sallallahu `alaihi wa sallam, said, during a lengthy khutbah:

"…The people of Hell are five: the weak who lack the power to (avoid evil); the (carefree) who pursue (everything irrespective of wheher it is good or evil) and who have no concern for their families and their wealth; the dishonest people whose greed cannot be cocealed even in the case of minor things; and those who betray you, morning and evening, with regard to your family and your property. He also mentioned misers, liars, and those who are in the habit of abusing people and using obscene, foul language." [Muslim, 4/1297, no. 2865
Sheikh al-Islam Ibn Taymiyah, may Allah have mercy on him, was asked: "What are the deeds of the people of Hell, and what are the deeds of the people of Paradise?"