Exactly, that's what I was getting at – 1914 is the 20th century, right?
Regarding the claim that Muslims were forbidden from trading... if that's true, then they weren't adhering to the principles of their religion very well!
These levies are called "zakat," a voluntary donation to the Muslim community... well, "voluntary" should also be in quotes... So, this is the same as the tithe in Christianity. The fact that a state cannot exist without taxes is a historical fact. Therefore, taxes were collected in addition to this zakat.

P.S. – Sorry, AlexeyPunk, maybe I'm missing something, but the information you're providing is