Harith bin Suwaid (may Allah have mercy on him) says that once a person asked Sayyiduna Ali (may Allah be pleased with him), "Did the Prophet (peace and blessings of Allah be upon him) tell you anything specifically, leaving out the common people?" He replied, "The Prophet (peace and blessings of Allah be upon him) did not tell us anything specifically, leaving out others, except for what is in the sheath of my sword." Then he took out a scroll from it, in which the ages of camels were written, and it was written that the Messenger of Allah (peace and blessings of Allah be upon him) said: "From 'Ir to Thawr, Madinah Munawwarah is a sanctuary. Whoever introduces an innovation in it or gives refuge to an innovator, upon him is the curse of Allah, the angels, and all people. On the Day of Resurrection, Allah will not accept any obligatory or voluntary act of worship from him. And whoever a slave calls someone other than his master as his master, upon him is the curse of Allah, the angels, and all people. On the Day of Resurrection, Allah will not accept any obligatory or voluntary act of worship from him either. And the responsibility of all Muslims is the same; if an ordinary person grants protection to someone, it must be respected. Whoever violates the protection given by a Muslim, upon him is the curse of Allah, the angels, and all people, and on the Day of Resurrection, no obligatory or voluntary act will be accepted from him."