Man Lā Yaḥḍuruh al-Faqīh
Hadith 851852 - وَ نَهَى صَلَّى اَللَّهُ عَلَيْهِ وَ آلِهِ عَنِ اَلْجِمَاعِ مُسْتَقْبِلَ اَلْقِبْلَةِ وَ مُسْتَدْبِرَهَا وَ نَهَى عَنِ اِسْتِقْبَالِ اَلْقِبْلَةِ بِبَوْلٍ أَوْ غَائِطٍ.
Hadith.852 - The Prophet, forbade engaging in sexual intercourse while facing or with one's back to the Qiblah.
He also forbade facing the Qiblah when urinating or defecating.