Aḥmad ibn Faḍlān ibn al-ʿAbbās ibn Rāšid ibn Ḥammād, (Arabic: أحمد بن فضلان بن العباس بن راشد بن حماد; c. 879–960) commonly known as Ahmad ibn Fadlan, was a 10th-century Muslim traveler, famous for his account of his travels as a member of an embassy of the Abbasid caliph, al-Muqtadir of Baghdad, to the king of the Volga Bulgars, known as his risāla ("account" or "journal"). Ibn Fadlan's detailed writings have been cited by numerous historians. They have also inspired entertainment works, including Michael Crichton's novel Eaters of the Dead and its film adaptation The 13th Warrior.