Abdur Rahman bin Yazid (may Allah have mercy on him) says that someone said to Sayyiduna Salman (may Allah be pleased with him): Your Prophet (peace and blessings of Allah be upon him) has taught you everything, even the manner of relieving yourselves. He replied: Yes! The Noble Prophet (peace and blessings of Allah be upon him) forbade us from facing the Qiblah while relieving ourselves, from cleaning ourselves with the right hand, from using less than three stones, and from cleaning ourselves with dung or bones.