ßÊÇÈ ÇáæÖæÁ : Hadeeth No:147 : Abu Aiyub Al-Ansari:
Allah's Apostle said, "If anyone of you goes to an open space for answering the call of nature he should neither face nor turn his back towards the Qibla; he should either face the east or the west."
...
ßÊÇÈ ÇáãÛÇÒí : Hadeeth No:4060 : Abu Raja Al-Utaridi:
We used to worship stones, and when we found a better stone than the
first one, we would throw the first one and take the latter, but if we
could not get a stone then we would collect some earth (i.e. soil) and
then bring a sheep and milk that sheep over it, and perform the Tawaf ...