What is the ruling on facing or turning one’s back to the qiblah when relieving oneself in a building?

Question:
What is the ruling on facing or turning one’s back to the qiblah in a building, in the restrooms?

Answer:
The safest course is that one should not face the qiblah or turn one’s back to it, absolutely, whether in a building or outside a building. However, outside a building, there is scholarly consensus that it is not permissible; it is forbidden. But regarding being inside a building, the scholars differed, with two opinions. Some say that inside a building, there is no harm, because there is a barrier between him and the Ka'bah, which is the building. Others say it is not permissible, even inside a building. If a person can avoid this inside a building, that is better. When he builds his house or constructs a restroom, he should not orient it toward the qiblah, nor turn his back to the qiblah with it, nor face it. He should turn it away from the qiblah to avoid the disagreement. Yes.