Narrated `Abdullah Ibn `Umar:
People say, "Whenever you sit for answering the call of nature, you should not face the Qibla or Baitul-Maqdis (Jerusalem)." I told them. "Once I went up the roof of our house and I saw Allah's Apostle (s.a.w.a.) answering the call of nature while sitting on two bricks facing Baitul-Maqdis (Jerusalem) (but there was a screen covering him." (Fath-al-Bari, Page 258, Vol. 1).
Narrated `Abdullah bin `Umar:
I went up to the roof of Hafsa's house for some job and I saw Allah's Messenger (s.a.w.a.) answering the call of nature facing Sham (Syria, Jordan, Palestine and Lebanon regarded as one country) with his back towards the Qibla.
Narrated to us: Yaqoob ibn Ibrahim, he said, narrated to us: Yazid ibn Haroon, he said: narrated to us Yahya from Muhammad ibn Yahya ibn Habaan that Amah Wasea' ibn Habaan informed him: that Abdullah Ibn Umar informed him, he said: Once I went up the roof of our house and saw Allah's Messenger (s.a.w.a.) answering the call of nature while sitting over two bricks facing Baitul-Maqdis.