Abu Tufail says: We said to Sayyiduna Ali (may Allah be pleased with him): Tell us that thing which the Noble Prophet (peace and blessings be upon him) told you people in secrecy. He said: The Noble Prophet (peace and blessings be upon him) did not tell us anything in secrecy that was hidden from the people. However, I heard him (peace and blessings be upon him) saying: Allah curses the one who sacrifices for other than Allah; Allah curses the person who gives shelter to an innovator; Allah curses the man who curses his parents; and Allah curses the person who changes the landmarks of the earth.