Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates from the Noble Prophet (peace and blessings be upon him) that he (peace be upon him) said: "I am to you just as a father is to his son (caring, well-wishing). Therefore, none of you should face the Qiblah nor turn his back towards it while relieving himself. And do not use less than three stones for istinja (cleaning), and do not use dung or bones among them."