Malaysia considers Islam in space
The country’s first spaceman is almost certain to be a Muslim, which raises a number of practical issues.
For instance, Muslims wash before they pray but not only is water a precious commodity in space, but it is also impractical in weightlessness.
Likewise, the faithful face Mecca. However, that will mean pin-pointing a moving location while in zero gravity.
And Muslim prayer times are linked to those of the sunrise and sunset, but in orbit the sun appears to rise and set more than a dozen times a day.

I think these questions were addressed in the 80′s when the saudi prince went to space
Having some fun…
Muslims Leaving Earth