The phrase Muqaddimah Ad Dustur (often translated as "Introduction to the Constitution") refers to a significant political and legal text authored by Taqi al-Din al-Nabhani , the founder of the international Islamist organization Hizb ut-Tahrir Institutional Repository UIN Syarif Hidayatullah Jakarta What is Muqaddimah Ad Dustur? : The book serves as an introduction to a proposed Islamic Constitution