Not entire sure what a 'jubah' is, but this pattern is one that I have seen in a variety of middle eastern clothing. And it looks damn comfy so I will likely end up making at least one of these for myself.
La Femme de France - A little trickier to decipher from just the images than some of these retro draft yourself patterns, some translation would help, but the pattern is clearly diagrammed below the description.
- pattern for Eastern Persian pirahan from Sarah Keuhn by Charles Mellor / Master Rashid. My own pattern is very close to this, but slightly different - i haven't gotten around to making a computer drawing of it.