Abū al-Maʿālī Saʿd ibn ʿAlī al-Ḥaẓīrī, often known as Dallāl al-kutub ('the Book Merchant') (fl. twelfth century CE), was a book-merchant, scribe and littérateur from Iraq. He is noted for composing the first known Arabic text entirely devoted to riddles, the Kitāb al-iʿjāz fī l-aḥājī wa-l-alghāz (Inimitable Book on Quizzes and Riddles).