Abu Hurairah (RA) said: When any one amongst you squats for answering the call of nature, he should neither turn his face towards the Qibla nor turn his back towards it.
Hadith ReferenceSahih Muslim / The Book of Purification / Hadith: 265
Hadith Gradingمحدثین:أحاديث صحيح مسلم كلها صحيحة
Hadith Takhrij«أحاديث صحيح مسلم كلها صحيحة ، انفرد به مسلم - انظر ((التحفة)) برقم (12858)»