Explanation of the Shaykh al-Sa'di's statement: The default ruling regarding souls and wealth is their protection

Question:
Honorable Shaykh, may Allah preserve you, what is the meaning of Shaykh al-Sa'di's (may Allah have mercy on him) statement: "The default ruling regarding the protected and the living, and regarding wealth, is their prohibition until the permission comes"? Is the default ruling...

Answer:
...or is the default ruling regarding them prohibition, except where the conditions of marriage are fulfilled? These are the bones. Yes. The default ruling regarding meat is prohibition, except where the lawful slaughter prescribed by the Shari'ah is fulfilled. Yes. The default ruling regarding the soul is its protection, the prohibition of killing, except for what the Lawgiver has exempted. The blood of a Muslim is not lawful except by one of three things: the soul for a soul, the married fornicator, and the one who leaves his religion and departs from the community.
The default ruling regarding the soul of a believer is its protection, the prohibition of killing, except by a legitimate Shari'ah justification that permits killing him, which is one of three: either a murderer who kills intentionally and aggressively, in which case he is killed in retaliation; or a fornicator who is married, in which case he is stoned with stones until he dies; or an apostate from the religion of Islam, in which case he is killed for apostasy.
The wealth of people: the default ruling regarding it is prohibition, except if their souls are pleased with it, or if it is taken through a lawful Shari'ah transaction, based on the saying of the Messenger (peace and blessings be upon him) So the default ruling regarding the wealth of people is its protection and prohibition, and it is not permissible to make it lawful except by a Shari'ah justification.