Umar ibn al-Khattab

Umar ibn al-Khattab

586 — 644

califat Rachidun

PoliticsMiddle AgesEarly Middle Ages, period of the first Islamic conquests (7th century)

A close companion of the Prophet Muhammad, Umar ibn al-Khattab became the second caliph of Islam (634–644). His reign saw a lightning expansion of the Muslim empire, from Persia to Egypt.

Key Facts

  • Born around 586 in Mecca, into the Quraysh tribe
  • Converting to Islam around 616, he became one of the closest companions of Muhammad
  • Elected second caliph in 634, following the death of Abu Bakr
  • During his reign (634–644), the Muslim empire conquered Syria, Iraq, Persia, and Egypt
  • Assassinated in 644 by a Persian slave, Abu Lu'lu'

Works & Achievements

Creation of the Diwan (pension register) (Around 636-638)

Omar established a state register providing regular pensions to all Muslim fighters and their families based on their seniority in Islam. This administrative innovation was one of the earliest organized social welfare systems in history.

Establishment of the Hijri calendar (638)

Omar standardized the Islamic lunar calendar, taking the year of the Hijra (622) as its starting point. This calendar is still used today throughout the Muslim world to determine the dates of religious observances such as Ramadan.

Administrative organization of conquered provinces (634-644)

Omar divided the empire into provinces (Amsar) with appointed governors, independent judges (qadis), and a codified tax system (kharaj on land, jizya on non-Muslims). This lasting administrative framework inspired the empires that followed.

Surrender Treaty of Jerusalem (Al-'Uhda al-'Umariyya) (638)

A foundational document guaranteeing the safety of people, property, and Christian holy sites in Jerusalem. This text is considered one of the earliest treaties of religious tolerance in medieval history.

Foundation of garrison cities (Amsar): Kufa and Basra (636-638)

Omar ordered the construction of planned military cities in Iraq to serve as bases for the armies and centers for the spread of Islam. Kufa and Basra quickly grew into major intellectual and commercial metropolises of the Islamic world.

Anecdotes

Omar ibn al-Khattab was renowned for his uncompromising sense of justice, even toward his own family. When he learned that his son had committed a serious offense, he personally ordered that he be punished according to Islamic law, refusing to grant any special treatment. This strictness earned him the title of Al-Faruq, 'the one who distinguishes truth from falsehood.'

During the conquest of Jerusalem in 638, Omar entered the city not as a triumphant conqueror, but dressed plainly, on foot, leading his camel by the reins himself while his servant rode. This gesture of humility deeply moved the city's inhabitants and Patriarch Sophronius, who personally handed him the keys to the city.

Omar was known for making anonymous nightly rounds through the streets of Medina, seeking to ensure that no one was suffering from hunger or injustice. It is said that on one such occasion he discovered a woman alone with her starving children, and personally carried food from the public storehouses to help them.

Before his conversion to Islam around 616, Omar was one of the Prophet Muhammad's most fierce opponents. His conversion, sudden and complete, was seen as a major turning point: according to Islamic tradition, Muhammad had prayed that one of the two great Omars — ibn al-Khattab or Amr ibn Hisham — would embrace Islam, so greatly would either man's allegiance strengthen the young community.

Primary Sources

Futuh al-Buldan (Conquests of the Lands) — Ahmad al-Baladhuri (9th century (compiled c. 892, based on 7th-century sources))
Omar wrote to the commanders of his armies: 'Do not advance without consulting the inhabitants, do not burn the crops, do not kill the livestock, respect the People of the Book in their places of worship.'
Capitulation Treaty of Jerusalem (Omar's Assurance — Al-'Uhda al-'Umariyya) (638)
He grants its inhabitants security for their persons and their property, their churches and their crosses… their churches shall neither be inhabited nor destroyed, and no harm shall be done to their religion.
Al-Tabaqat al-Kubra — Ibn Sa'd (9th century (compiled c. 845))
Omar wore a garment patched in twelve places. He ate barley bread with salt and oil, and would say: 'How could I eat meat when my subjects are suffering from hunger?'
Tarikh al-Rusul wa al-Muluk (Annals) — Al-Tabari (10th century (compiled c. 915, based on earlier sources))
In the year 18 of the Hijra, the Year of the Ash, Omar traveled in person to Syria to organize relief efforts. He personally distributed food to the populations affected by famine and plague.

Key Places

Mecca (Makkah al-Mukarrama)

Birthplace of Omar ibn al-Khattab, religious center of pre-Islamic Arabia and cradle of Islam. It was here that he grew up, opposed Muhammad, and eventually converted — a turning point that shook the foundations of the nascent Muslim community.

Medina (Al-Madina al-Munawwara)

Capital of the caliphate under Omar, the city where he lived, governed, and was assassinated in 644. It was in Medina that he introduced the sweeping administrative reforms of the Islamic empire, and where he rests in the Prophet's Mosque.

Jerusalem (Al-Quds)

Holy city of the three Abrahamic religions, conquered in 638. Omar personally signed the famous Covenant of Omar, guaranteeing the protection of Christian and Jewish inhabitants — establishing a precedent of religious tolerance widely noted by historians.

Ctesiphon (Al-Mada'in)

Former capital of the Sassanid Persian Empire, captured in 637 by Muslim armies during the Battle of al-Qadisiyyah. Its fall symbolizes the collapse of Zoroastrian Persia and the eastward expansion of the Islamic empire.

Yarmouk Plain (Syria)

Site of the decisive Battle of Yarmouk in 636, where Omar's armies crushed the Byzantines and opened the way for the conquest of Syria, Palestine, and Lebanon. This victory permanently redrew the map of the Middle East.

Gallery

The Prophet, 'Ali, Husayn and Hasan in Paradise; 'Uthman, 'Umar and Abu Bakr are in the foreground. Miniature from a 17th century manuscript of Khavarnama, a poem on the deeds of 'Ali; Punjab, 1686 (B

The Prophet, 'Ali, Husayn and Hasan in Paradise; 'Uthman, 'Umar and Abu Bakr are in the foreground. Miniature from a 17th century manuscript of Khavarnama, a poem on the deeds of 'Ali; Punjab, 1686 (B

Wikimedia Commons, Public domain — Unknown artistUnknown artist


Portrait of Prophet Muhammad, Imam 'Ali and His Sons and His Closest Companions

Portrait of Prophet Muhammad, Imam 'Ali and His Sons and His Closest Companions

Wikimedia Commons, CC0 — Creator:Rahim Kashani

Turkish miniature paintings depicting Muhammad and the first four Caliphs of Islam (Abu Bakr, Umar, Uthman, and Ali) surrounding him, circa 16th century

Turkish miniature paintings depicting Muhammad and the first four Caliphs of Islam (Abu Bakr, Umar, Uthman, and Ali) surrounding him, circa 16th century

Wikimedia Commons, Public domain — Unknown authorUnknown author

Exterior of Sultan Ahmed I Mosque in Istanbul, Turkey 002

Exterior of Sultan Ahmed I Mosque in Istanbul, Turkey 002

Wikimedia Commons, CC BY-SA 3.0 — Moonik

Rashidun Caliphs Umar ibn Al-Khattāb - عُمر بن الخطّاب ثاني الخلفاء الراشدين

Rashidun Caliphs Umar ibn Al-Khattāb - عُمر بن الخطّاب ثاني الخلفاء الراشدين

Wikimedia Commons, CC BY-SA 3.0 — Petermaleh

Umar2

Umar2

Wikimedia Commons, CC BY-SA 3.0 — أبو بكر السوري

Mohmmed, Ahl Albit and Alrasheden

Mohmmed, Ahl Albit and Alrasheden

Wikimedia Commons, CC BY-SA 4.0 — Michel Bakni

The ten to whom Paradise was promised (Umar)

The ten to whom Paradise was promised (Umar)

Wikimedia Commons, Public domain — عبدالعزيز علي

Tombstone of Umar (r.a) by mohammad adil rais

Tombstone of Umar (r.a) by mohammad adil rais

Wikimedia Commons, CC BY-SA 3.0 — Mohammad adil at English Wikipedia

Umar Farrukh's Caliph Umar arrives in Jerusalem

Umar Farrukh's Caliph Umar arrives in Jerusalem

Wikimedia Commons, Public domain — Unknown authorUnknown author

See also