An Arabic work, the Kitāb Futūḥ al-Buldān is a digest of a larger lost work of geographical history of the Caliphate empire, the political histories and events leading to inclusion of the locations within it, including accounts of the prophet Muhammad's early conquests and the early caliphs.
Al-Baladhuri travelled widely in regions of northern Syria and Mesopotamia, collecting traditions for material to include in his book. Futūḥ al-Buldān ("Book of the Conquests of the Lands") was edited by M. J. de Goeje as Liber expugnationis regionum (Leiden, 1870; Cairo, 1901).
An English edition with the title "The Origins of the Islamic State, was published in two parts by Columbia University Press; vol. 1, translated by Philip Khuri Hitti (1916)  and vol. 2, translated by Francis Clark Murgotten (1924). Al-Baladhuri also translated some Persian texts into Arabic.
- Al-Balādhurī, Aḥmad ibn Yaḥyā (1957). Futūḥ al-Buldān. Beirut: Dār al-Nashr li-al-Jāmi‘īyīn.
- Al-Balādhurī (1916). The Origins of the Islamic State: Translation with Annotations Geographic and Historic Notes of the Kitāb Futūḥ al-Buldān of al-Imâm abu-l'Abbâs Aḥmad ibn-Jâbir al-Balâdhuri. 1. Translated by Philip Khuri Hitti. New York: Columbia University Press.
- Al-Baladhuri (1924). The Origins Of The Islamic State. 2. Translated by Francis Clark Murgotten. New York: Columbia University Press.
- Thatcher, Griffithes Wheeler (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press. . In Chisholm, Hugh.
- Full English text of The origins of the Islamic state: being a translation from the Arabic, accompanied with annotations, geographic and historic notes of the Kitâb fitûh al-buldân of al-Imâm abu-l Abbâs Ahmad ibn-Jâbir al-Balâdhuri
- Full English text of The Origins Of The Islamic State Part II