Takbir (Allahu Akbar)
The exclamation "Allahu Akbar" (Allah is the Greatest), marking transitions in the prayer.
Takbir (Arabic: تكبير) is the exclamation "Allahu Akbar", meaning "Allah is the Greatest" or "Allah is Greater". Takbir is used throughout the Islamic prayer to mark transitions between the prayer's different positions.
The first takbir in the prayer is called "takbirat al-ihram" (the opening takbir) and is what officially starts the prayer. From this moment, the worshipper is in a state of ihram (sanctity), and worldly actions such as speaking, eating and drinking are forbidden until the prayer's conclusion.
Takbir is also said during the transition from standing to ruku, from ruku to sajdah, between the two sajdah, and when rising to the next rak'ah. It reminds the worshipper of Allah's greatness at each shift in the prayer.
Outside of prayer, takbir is used during Islamic holidays (Eid), during the adhan, and as a general expression of joy and gratitude toward Allah.
Related terms
Salat al-Istikhara (Guidance Prayer)
A prayer where one asks Allah for guidance to make the right decision.
Mustahab (Recommended)
Actions that are recommended but not obligatory, and that give extra reward.
Rajab (The Venerable Month)
The seventh Islamic month, filled with special prayers and worship.
Ma'ad (Resurrection)
Belief in resurrection and judgment day — the fifth article of faith in Shia Islam.
Sahabi (Companion of the Prophet)
A person who met the Prophet Muhammad (peace be upon him) as a believer and died as a Muslim.
Minbar (Pulpit)
The elevated platform in the mosque from which the imam delivers the Friday khutbah.