Takbir

Usage in Islamic rituals

This phrase is recited by Muslims in many different situations.

In prayer

The phrase is said during each stage of both salah (obligatory prayers, performed five times a day), and nafl (supererogatory prayers, performed at will). The call to prayer by the muezzin to those outside the mosque (adhan) and the call to those inside to line up for the commencement of prayer (iqama) also contain the phrase.

While there are many short prayers like it, the takbīr is used more frequently than any other.

Following births and deaths

The phrase is used after the birth of a child as a means of praising God. It is also part of Islamic funeral and burial customs.

During the Eid Festival and the Hajj

During the festival of Eid al-Fitr and Eid al-Adha, and also the days preceding it, Muslims recite the takbīr. This is particularly the case on the Day of Arafah.

During the halal slaughter of animals

In the process of pronouncing the name of God while performing Dhabihah one must say Bismillah Allahu Akbar.

Other social usage

The expression Allāhu ʾakbar can be used in a variety of situations, from celebrations to times of grief.

In a historical account by someone who was present both at the birth of the ruler Abd Allah ibn al-Zubayr (7th century) and at his funeral, the author observes that Allāhu ʾakbar was said on both occasions.

In times of joy and gratitude

The takbīr can be used to express joy or surprise. It is also used as applause in religious contexts, such as after a Quran recital, as other forms of applause are considered less appropriate.

It is used to celebrate an election win. As a multi-purpose phrase, it is sometimes used by Arab football commentators as an expression of amazement, or even as a football chant.

In battle

Historically, the takbīr has been used as a cry of victory during battle. Ibn Ishaq's 8th century Life of Muhammed narrates two occasions when Muhammad proclaimed the takbīr during battle.

Iran

During the Iranian Revolution of 1979, it was shouted from rooftops in Iran during the evenings as a form of protest. The takbīr was later adopted as the official motto of Iran. This practice returned in the 2009 Iranian presidential election protests, which protested the election results.

Usage by Jihadists and Terrorists

The phrase has been used by Islamic terrorists during their attacks they carry out, becoming a globally associated with jihadist violence. Notably it has been used during the September 11th attacks., the 2004 Beslan School Siege, the 7 July 2005 London Bombings, the 2008 Mumbai attacks, the 2009 Fort Hood Shooting, the 2013 Boston Marathon Bombing, the 2015 Charlie Hebdo Shooting 2015 Baga massacre, the November 2015 Paris Attacks, the 2015–16 New Year's Eve Mass Rape and Sexual Assaults across Germanythe 2016 Nice Truck Attack, the 2017 Ariana Grande Manchester Concert Bombing,the 2017 Notre-Dame de Paris attack, the 2017 Barcelona attacks, the 2019 Sri Lanka church bombings on Easter, the October 7th attacks in Israel, the 2024 Crocus City Hall attack, the 2025 Pahalgam attack, and the 2025 Bondi Beach Hanukkah Shooting.

Professor Khaled A. Beydoun, author of The New Crusades: Islamophobia and the Global War on Muslims (2023), writes that the association of the phrase "Allah Akbar" with terrorism has been exacerbated by mass media and television pundits. He adds that films and shows also utilise it as a cinematic trope further cementing the association.

In politics

In India, Asaduddin Owaisi, president of the AIMIM and Abu Taher Khan, representing TMC, after being elected as members of the Indian Parliament, ended their oath with the slogan of "Allahu Akbar".

Usage by Christians

The phrase (Allah; meaning God in English) is recited by Arabic speaking Orthodox Christians as an expression of their faith. Palestinian Christians use Allah in their prayer to refer to the creator of the world, and the takbir as an expression of their faith. The use of takbir has been defended by Theodosios Hanna, the Palestinian Orthodox Archbishop of Sebastia.

Use on flags

Afghanistan

The Afghan constitution that came into force on January 4, 2004, required that Allāhu akbar be inscribed on the flag of the Islamic Republic of Afghanistan. After the 2021 Taliban offensive, the flag of the first emirate was readopted, and thus the takbīr removed from the flag.

Iran

Allāhu akbar is written in stylised form across the bottom of the green stripe and the top of the red stripe of the flag of the Islamic Republic of Iran, adopted in 1980.

Iraq

The phrase Allāhu akbar is written on the centre of the flag of Iraq.

During the Gulf War in January 1991, Saddam Hussein held a meeting with top military commanders, where it was decided to add the words Allāhu akbar (described as the Islamic battle cry) to Iraq's flag to boost his secular regime's religious credentials, casting himself as the leader of an Islamic army. Hussein described the flag as "the banner of jihad and monotheism".

In 2004, the US-picked Iraqi Governing Council approved a new flag for Iraq that abandoned symbols of Hussein's regime, such as the words Allāhu akbar. In January 2008, however, Iraq's parliament passed a law to change the flag by leaving in the phrase, but changing the calligraphy of the words Allāhu akbar, which had been a copy of Hussein's handwriting, to a Kufic script. The Iraqi flag under Hussein had each of the two words of the phrase written in one of the spaces between the stars on the central band; the flag adopted in 2008 kept the phrase and removed the stars.

Other uses

A resistance movement that fought British rule in Waziristan, Pakistan, used a red flag bearing Allāhu akbar in white letters.

The flag used by the Houthis in Yemen also includes bearing Allāhu akbar in green letters.