Translated from the original Arabic by Al Mutarjim
In this short audio file, prominent Egyptian Shaykh Abi-Ishaq al-Huwayni explains that Muslims' financial difficulties are due to the fact that they have abandoned jihad.
The solution? Go on jihadist raids a few times a year, and bring back prisoners, including women and children, which can be sold in the market "like groceries" to bring in extra income when times are tough.
The subtitled video is below, and the transcript follows that (thanks to Nonie Darwish for sending this one in):
We are in the era of jihad. The era of jihad has come over us, and jihad in the path of Allah is a pleasure. It is a real pleasure. The companions (of the Prophet) used to compete to (perform jihad). The poverty that we’re in—is it not due to our abandonment of jihad? But if we could conduct one, two, or three jihadist operations every year, many people throughout the earth would become Muslims. And whoever rejected this da’wa, or stood in our way, we would fight against him and take him prisoner, and confiscate his wealth, his children, and his women—all of this means money. Every mujahid who returned from jihad, his pockets would be full. He would return with 3 or 4 slaves, 3 or 4 women, and 3 or 4 children. Multiply each head by 300 dirhams, or 300 dinar, and you have a good amount of profit. If he were to go to the West and work on a commercial deal, he would not make that much money. Whenever things became difficult (financially), he could take the head (i.e. the prisoner) and sell it, and ease his (financial) crisis. He would sell it like groceries. Of those who are--(cuts off)