Is it permissible to kill a non- Muslim who blasphemes or insults Rasulullah (sallallahu alayhi wasallam)?

Answer

Neither in a non-Muslim state nor in an Islamic state is it permissible for an individual to take the law into his own hands and kill a person who has disparaged Rasulullah (sallallahu alayhi wasallam). While the Muslim has to incumbently hate the blasphemer, he (the Muslim) does not have the right to kill him. It is the right of only the Qaadhi (Islamic judge) to try, convict and sentence the blasphemer. Those who ignore this law of the Shariah, advocate anarchy.