I won't show you as I am not into books that were written thousand years ago by an unknown people claiming some kind of god was dictating them to write it down. Then those books were re-written by yet another unknown people a couple of times to fit their purpose of brainwashing and control using fear. So no, I won't show you where in Quran it says a woman must wear a burka as I am never going to be even close to touching that book. I know however that burkas are worn by muslim women and muslim equals islamic therefore I wrote that wearing burkas is all about islam.