It is narrated from Hazrat Abu Hurairah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: I am like a father to you (therefore it is my responsibility to teach you). When you go to the toilet, do not sit facing the Qiblah or with your back towards it. Also, the Noble Prophet (peace and blessings be upon him) forbade cleaning oneself with dung and decayed bones, and said: No person should clean himself with his right hand.