Tribute, Spoils, and Rulership (Kitab Al-Kharaj, Wal-Fai' Wal-Imarah)
كتاب الخراج والإمارة والفىء
Chapter 39: Land Protected By A Ruler Or By A Man
Al Sa’b bin Jaththamah reported the Apostle of Allaah(ﷺ) as saying “There is no (permission for) protected land except for Allaah and His Prophet. Ibn Shihab said “It has reached me that the Apostle of Allaah(ﷺ) protected Naqi’.”
Chapter 40: Ar-Rikaz (Buried Treasure) And The Levy Due On It
Al hasan said “Rikaz means treasure buried in pre Islamic times.”