كتاب الطهارة
Read the English translation first, with the original Arabic directly underneath.
Narrated Abu Hurairah:
The Messenger of Allaah ( sal Allaahu alayhi wa sallam ) as saying: I am like father to you. When any of you goes to privy, he should not face or turn his back towards the qiblah. He should not cleanse with his right hand. He (the Prophet, sal Allaahu alayhi wa sallam) also commanded the Muslims to use three stones and forbade them to use dung or decayed bone.
إِنَّمَا أَنَا لَكُمْ بِمَنْزِلَةِ الْوَالِدِ أُعَلِّمُكُمْ فَإِذَا أَتَى أَحَدُكُمُ الْغَائِطَ فَلاَ يَسْتَقْبِلِ الْقِبْلَةَ وَلاَ يَسْتَدْبِرْهَا وَلاَ يَسْتَطِبْ بِيَمِينِهِ