Hazrat Abu Tufail (may Allah have mercy on him) narrates that Sayyiduna Ali (may Allah be pleased with him) was asked whether the Messenger of Allah (peace and blessings of Allah be upon him) had told him anything special that he had not told to other people. He replied: The Noble Prophet (peace and blessings of Allah be upon him) did not tell us anything that he did not tell the people, except for what is in the sheath of my sword. Then he took out a piece of paper on which was written:“The curse of Allah is upon the one who sacrifices for other than Allah, the curse of Allah is upon the one who steals the boundary marks of the land, the curse of Allah is upon the one who curses his parents, and the curse of Allah is upon the one who gives shelter to an innovator.”