(11) CHAPTER. While urinating or defecating, never face the Qiblah except when you are screened by a building or a wall or something like that.
144. Narrated Abu Ayyub Al-Ansãri : Allah’s Messenger, peace be upon him, said, “If anyone of you goes to an open space for answering the call of nature he should neither face nor turn his back towards the Qiblah; he should either face the east or the west.”