According to search-discovered classical scholarship, the Islamic concept of privacy is epitomized by the Quranic principle of Isti'dhan (استئذان), the mandatory act of seeking permission before entering private dwellings. This is not merely polite etiquette but a divine command detailed in Surah An-Nur. The great mufassir Ibn Kathir explains that the wisdom behind this rule is to protect the 'awrah (that which should be concealed) and prevent the eyes from falling upon something inappropriate, thus safeguarding morality. Al-Qurtubi, in his legal tafsir, derives comprehensive rulings from these verses, establishing the sanctity of the home (hurmat al-bayt) as a fundamental right. The synthesis of these verses establishes a complete social framework that respects boundaries, protects dignity, and fosters a pure and trusting community, extending from entering neighbors' homes to the nuanced rules of privacy within the family itself.