Shams al-Dīn Abū ʿAbd Allāh Muḥammad ibn Aḥmad ibn Abī Bakr al-Maqdisī (Arabic: شَمْس ٱلدِّيْن أَبُو عَبْد ٱلله مُحَمَّد ابْن أَحْمَد ابْن أَبِي بَكْر ٱلْمَقْدِسِي), better known as al-Maqdisī (Arabic: ٱلْمَقْدِسِي) or al-Muqaddasī (Arabic: ٱلْمُقَدَّسِي), (c. 945/946 – 991) was a medieval Arab geographer, author of Aḥsan al-taqāsīm fī maʿrifat al-aqālīm (The Best Divisions in the Knowledge of the Regions), as well as author of the book, Description of Syria (Including Palestine). He is one of the earliest known historical figures to self-identify as a Palestinian during his travels.
Al-Maqdisi mentioned regions in Eastern Arabia which form parts of what are now Saudi Arabia, the Eastern Arabia which form parts of what are now Saudi Arabia, the UAE and Oman. Al-Hasa is an important oasis region in the eastern part of Saudi Arabia, whereas Tuwwam is another oasis region split between the UAE and Oman, comprising the modern settlements of Al Ain and Al-Buraimi on different sides of the Omani-UAE border. Dibba is another region split between the UAE and Oman, touching the Musandam Peninsula, which is partly ruled by the Emirate of Ras Al Khaimah, where the ancient settlement of Julfar is located.