Why is it another issue? its a simple question do you think it was justified Islamically ?if so:
Well first off it is a different issue from whether or not Jihad is allowed, as understanding that Jihad is not only allowed but Fard Ayn does not necessarily mean you agree with every action taken within the context of Jihad. So they are different issues in the same way as believing whether WW2 was justified and whether the use of the atomic bomb was justified are seperate issue. In saying that they are linked to a certain degree.
I think that it can justified Islamically and there are a number of evidences for this both from the Quran and the Sunnah.
what sources do you as a muslim ,think he has used to Justify 9/11 as a legitimate act of his Jihad? he has also issued a fatwa calling for the killing of americans soldiers or civilians any where at any time, what sources in Quran ,Sunnah etc do you as a muslim think he uses to justify this?
To deal with the later part of your point first, I am not sure about the justification for killing civilians, however I will try to find out what sources they use to justify this. As for US soldiers I see no problem as they will target Muslims anywhere they like so why should the Mujahideen only fight them on the battlefields that they choose.
As to the first part, the sources used to justify it are the Quran, Sunnah, Fatwa from scholars and examples from Islamic history.
The US are guilty of terrible crimes against the Muslim Ummah, from the supporting and arming of Israel, attacks on Sudan, sanctions against Iraq and much more. This agression has resulted in the deaths of millions of people. The Quran allows retaliation for this:
... All Sacred Things are under the law of retaliation. Whoever then acts aggressively against you, retaliate, inflict injury upon the perpetrator according to what he has inflicted upon you...
(2:194)
And if you take your turn, then retaliate with the like of that with which you were afflicted; but if you are patient, it will certainly be best for those who are patient.
(16:126)
So its obvious that you can retaliate in the same way that you where attacked. If Muslim civilians are killed then the civilians of those who did this can also be targetted, however the number of them killed can't exceed the nmber of Muslims.
The above is the main ayat's on which 9/11 was justified. It is also justified on the basis that it is obligatory to remove the US from the Muslim lands and this would be the best way to do so by drawing them into a war which would ultimatly lead to their defeat. Al Qaeda have been saying since before 2001 that the US economy is its soft underbelly and the attacks where aimed to cost the most damage to that. Some would say they where aimed to cause maximum civilian casualties however I would disagree based on the time it was done at and also the fact that there would be better targets for causing as many deaths as possible.
Another factor is that Islam doesn't differentiate between military and civilians but rather between combatants and non combatants. A combatant is not only someone who physically participates in attacking the Muslims but one who supports it in any way such as financially and morally. Al Qaeda have argued that this includes the vast majority of US citizens as this majority pay taxes and vote for the Democrats or Republicans, both of who have waged the war on Islam.
Now it has been said that among those killed there would of course be some who don't take this stand and also some Muslims. While Islam would try to avoid such deaths they are allowed when those people cannot be differentiated from the larger body:
It is reported on the authority of Sa'b b. Jaththama that the Prophet of Allah (may peace be upon him), when asked about the women and children of the polytheists being killed during the night raid, said: They are from them.
Sahih Muslim: Book 019, Number 4321:
Narrated As-Sab bin Jaththama: The Prophet passed by me at a place called Al-Abwa or Waddan, and was asked whether it was permissible to attack the pagan warriors at night with the probability of exposing their women and children to danger. The Prophet replied, "They (i.e. women and children) are from them (i.e. pagans)." I also heard the Prophet saying, "The institution of Hima is invalid except for Allah and His Apostle."
Sahih Bukhari: Volume 4, Book 52, Number 256
Can you reflect on his actions and say this is justified but that is not, has he left real Islam and redefined "his "Islam to suit whatever actions he decides are legitimate?
You would have to give individual actions as there is alot of them. However even if they where all mistakes this would not mean that he has left Islam as this issue is one of Fiqh (Islamic Jurisprudence) and so the most that could be said of him is that he has taken the wrong position and that he is sinning.
Whoever as much as kills a sparrow in vain will find it crying before Allah on the Day of Judgment: My Lord! That person killed me in vain. He did not kill me for needful sustenance.
This is out of context. The key word in the sentence is "in vain" and so for it to apply it would have to be argued that the attacks where carried out with no purposes and with no Sharia evidences to support them. Of course many of the Muslims who oppose 911 are happier to sit back and proclaim such statements rather than deal with the issues. The same methodology could be used to apply the above verse to the wars waged by the Prophet (SAW) and the early Muslims.
If people make arguments based on their emotions or their own personal interpretation of Islam rather than going to the sources then despite them being Muslims their argument is a personal one rather than a Muslim one.
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I have only touched on the arguments above as I don't have time to go into them in more detail at this time but they do go much deeper than this and there is many more evidences.