The World Federation One Stop Fiqh

Ruling 874

If a man and a woman stand level with each other or a woman stands in front and they perform prayers, and if there is a wall, curtain, or something else between them so that they cannot see one another, or the distance between them is more than ten cubits (dhirāʿs) (equivalent to approximately four and a half metres), then in these cases, the prayers of both of them are valid.