Defending oneself, one’s honor, or the land: Is the permission of the authority required?

Question:
He says: Honorable Shaykh, may Allah grant you success. Is the permission of the authority required for defensive jihad, whether it is defense of the self, the honor, or the land? And who is it that says this is defensive jihad or otherwise?

Answer:
If someone attacks you in your home or your shop, seeking your wealth or your blood, or seeking to violate your honor, you defend yourself, provided there is no fitnah (trial, discord or temptation). Provided there is no fitnah, if your defense does not lead to a greater fitnah, then you defend yourself. It does not require the permission of the authority, for Allah has given you permission to defend your self, your wealth, and your honor. As for the general defense of the country, the authority is necessary to organize this matter, take charge of it, and mobilize people for it. It is essential that this be under the authority; it is not a matter of chaos. If the defense were left to everyone doing as they please, and every group doing as they please, then disagreement would arise among them. Each person would want independence. If they were victorious, each person would want independence and say, “I am the one who was victorious, and I am the one who…” Then disagreement would occur, and they would fight among themselves. They would return to fighting among themselves in the end. But if this is under the leadership of the authority, then there will be no discord or disagreement afterward. We have seen people who struggled and fought, but when they were victorious over the enemy, they returned to fighting among themselves.
Because each person says, “The right is mine. I am the one who was victorious, and I am the one who struggled.” So the matter became, as you know, a result of this, because it was not organized and not under the leadership of the authority. Yes.