The Shaykh of Islam said: "And Ahmad was asked about the Qadariyyah: are they to be declared disbelievers? He said: If they deny knowledge, that is disbelief. In that case, the one who denies knowledge is of the same kind as the Jahmiyyah. As for killing the one who calls to innovations, he may be killed to prevent his harm from reaching the people, just as the one who wages war is killed, even if he is not actually a disbeliever. Not everyone who is ordered to be killed is killed for his apostasy. On this basis, the killing of Ghaylan al-Qadari and others may have been on this basis. These issues are detailed in other places, and we have only mentioned them here as a brief indication."
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The reader: "And Ahmad was asked about the Qadari: is he to be declared a disbeliever? He said: If he denies knowledge, that is disbelief. In that case, the one who denies knowledge is of the same kind as the Jahmiyyah. As for killing the one who calls to innovations, he may be killed to prevent his harm from reaching the people, just as the one who wages war is killed, even if he is not actually a disbeliever. Not everyone who is ordered to be killed is killed for his apostasy. On this basis, the killing of Ghaylan al-Qadari and others may have been on this basis. These issues are detailed in other places, and we have only mentioned them here as a brief indication."
The Shaykh : Well done. This is correct. It means that it is not necessary that the killing of a person who calls to an innovation be because his innovation is a major sin that entails disbelief. A person may be killed to stop his evil, for the one who does evil is like the beggar; if he cannot be stopped except by killing, then it is obligatory to kill him. Also, another point: it is not necessary that fighting entails the permissibility of killing. This is a second issue. For this reason, the scholars said that the adhan and the iqamah are a collective obligation, and the people of a town who leave them are to be fought. Yet it is not permissible to kill them. That is, it is not permissible for one person from the town to answer and you kill him, saying, "Because you left the adhan." But fight them until they call the adhan and establish the iqamah, as in His saying:[Al-Hujurat 49:9] And what the Shaykh (may Allah have mercy on him) said, I think, if Allah wills, is clear.
The Shaykh : Well done. This is correct. It means that it is not necessary that the killing of a person who calls to an innovation be because his innovation is a major sin that entails disbelief. A person may be killed to stop his evil, for the one who does evil is like the beggar; if he cannot be stopped except by killing, then it is obligatory to kill him. Also, another point: it is not necessary that fighting entails the permissibility of killing. This is a second issue. For this reason, the scholars said that the adhan and the iqamah are a collective obligation, and the people of a town who leave them are to be fought. Yet it is not permissible to kill them. That is, it is not permissible for one person from the town to answer and you kill him, saying, "Because you left the adhan." But fight them until they call the adhan and establish the iqamah, as in His saying: