ISIS is within the bounds of the teachings of the Quran as well as the sunnah. Wahabis are Sunni Muslims. The Saudis just happen to be a bit more orthodox then their heterodox "hypocrite" counterparts. Those heterodox Muslims that don't join The Islamic State in imperialistic conquest and subjugation of the vanquished, or wish in their hearts that they were, are "hypocrites". What you see being perpetrated by The Islamic State, is in the mold of the "messenger" that they follow:
BANU QURAYZA MASSACRE
And the commands that he gave them.
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Bukhari B78 #627 Narrated 'Aisha: The Prophet said, "O followers of Muhammad!....."[/FONT]
[FONT=Arial,Helvetica,sans-serif](URL) Qur'an 33:26 "Allah took down the People of the Scripture Book. He cast terror into their hearts. Some you slew, and some you made prisoners. And He made you heirs of their lands, their houses, and their goods, giving you a land which you had not traversed before. And Allah has power over all things."[/FONT]
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Quran Surah 8:12I will instill terror into the hearts of the unbelievers: smite ye above their necks and smite all their finger-tips off them [/FONT]
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Quran Surah 9.111 Allah hath purchased of the believers their persons and their goods; for theirs (in return) is the garden (of Paradise): they fight in His cause, and slay and are slain: a promise binding on Him in truth, through the Law, the Gospel, and the Qur'an: and who is more faithful to his covenant than Allah. then rejoice in the bargain which ye have concluded: that is the achievement supreme.[/FONT]
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Bukhari, V1 B2 #24 Narrated Ibn 'Umar: Allah's Apostle said: "I have been ordered (by Allah) to fight against the people until they testify that none has the right to be worshipped but Allah and that Muhammad is Allah's Apostle, and offer the prayers perfectly and give the obligatory charity, so if they perform a that, then they save their lives an property from me except for Islamic laws and then their reckoning (accounts) will be done by Allah."[/FONT]
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(URL) Quran Surah 9.29 Fight those who believe not in Allah nor the Last Day, nor hold that forbidden which hath been forbidden by Allah and His Messenger, nor acknowledge the religion of Truth, (even if they are) of the People of the Book, until they pay the Jizya with willing submission, and feel themselves subdued. 30 The Jews call 'Uzair a son of Allah, and the Christians call Christ the son of Allah. That is a saying from their mouth; (in this) they but imitate what the unbelievers of old used to say. Allah's curse be on them: how they are deluded away from the Truth![/FONT]
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(URL) "Summarized Sahih Al-Bukhari" - Maktba Dar-us-Salam's page 580[/FONT]
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Chapter 2. The best among the people is that believer who strives his utmost in Allah's Cause with both his life and property.[/FONT]
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footnotes:[/FONT]
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[1] "Al-Jihad (the holy fighting) in Allah's Cause (with full force of number and weaponry) is given the utmost importance in Islam and is one of its pillars (on which it stands). By Jihad Islam is established, Allah's Word is made superior, [His Word being La ilaha ill-Allah (which means: none has the right to be worshipped but Allah)] and His Religion (Islam) is propagated. By abandoning Jihad (may Allah protect us from that) Islam is destroyed and the Muslims fall into an inferior position; there honour is lost, their lands are stolen, their rule and authority vanish. Jihad is an obligatory duty in Islam on every Muslim, and he who tries to escape from this duty, or does not in his innermost heart wish to fulfill this duty, dies with one of the qualities of a hypocrite.[/FONT]
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[2]Of course, nobody can offer Salat (prayer) and observe Saum (fast) incessantly, and since the Muslim fighter is rewarded as if he was doing such good impossible deeds, no possible deed equals Jihad in reward.[/FONT]