Islamic Jihad Fought With Money, Not Just The Sword

"And fight them until there is no fitnah and [until] the religion, all of it, is for Allah . And if they cease - then indeed, Allah is Seeing of what they do" Quran 8:39

Jihad does not mean holy war, although it includes holy war. Jihad actually means struggle, which is a much better way to see it because jihad includes much more than war with violence. Jihad can be done with the sword, the mouth, the pen and with money. The Koran calls jihad-- fighting in Allah's cause. The Koran lays out the vision of jihad. The Sira (Mohammed's biography) lays out the grand strategy of jihad. The hadith (the Traditions) give us the tactics-all the small details about what needs to be done. And of course all of these things are modeled upon Mohammed, because Mohammed is not only the perfect Muslim, but also the perfect jihadist. You can see how important jihad is when you read Mohammed's biography the Sira. Jihad takes up about three quarters of the Sira. There was only a nine-year period in which he pursued intense jihad but the number of pages that are devoted to it gives you an idea of how important it was. The importance is this: Mohammed, the man, the preacher, the religious man, did not succeed until he turned to jihad. It's only natural that Muslims would look to jihad as their most successful strategy and therefore record the most about it.

Now let's take care of one issue. Muslims frequently say, ' Well, the real jihad is inner struggle, the spiritual struggle." That is the Greater Jihad. The jihad of the sword and war is the Lesser Jihad. But the hadith tell us about the greater jihad --the inner spiritual struggle. But only 3% of the hadith are devoted to this kind of struggle. The other 97% are about killing the kafir. Is jihad the inner struggle? Yes. Is jihad killing the kafir? Yes. Notice again we have a duality. Source