Qur'an (4:89) - "They wish that you should disbelieve as they disbelieve, and then you would be equal; therefore take not to yourselves friends of them, until they emigrate in the way of God; then, if they turn their backs, take them, and slay them wherever you find them; take not to yourselves any one of them as friend or helper."
Qur'an (33:57) - "Lo! those who malign Allah and His messenger, Allah hath cursed them in this world and the Hereafter, and hath prepared for them the doom of the disdained"
Qur'an (33:61) - [continues from above] "Accursed, they will be seized wherever found and slain with a (fierce) slaughter."
