This month is regarded as one of the four sacred months in Islam in which battles are prohibited. The pre-Islamic Arabs also considered warfare blasphemous during the four months.
The month is also a prelude to the month of Ramadan, which follows after the intervening month of Allāhumma bārik lanā fī rajaba wa shaʻbāna wa balligh-nā ramaḍāna
"O Allah, make the months of Rajab and Sha'ban blessed for us, and let us reach the month of Ramadan (i.e. prolong our life up to Ramadan, so that we may benefit from its merits and blessings)."
The Islamic calendar is a lunar calendar, and months begin when the first crescent of a new moon is sighted. Since the lunar year is 11 to 12 days shorter than the solar year, Rajab migrates throughout the seasons. The estimated start and end dates for Rajab, based on the Umm al-Qura calendar of Saudi Arabia, are:
|AH||First day (CE / AD)||Last day (CE / AD)|
|1431||13 June 2010||12 July 2010|
|1432||3 June 2011||1 July 2011|
|1433||22 May 2012||20 June 2012|
|1434||11 May 2013||9 June 2013|
|1435||30 April 2014||22 May 2014|
|1436||20 April 2015||12 May 2015|
|1437||8 April 2016||7 May 2016|
|1438||29 March 2017||27 April 2017|
|1439||18 March 2018||16 April 2018|
|1440||8 March 2019||6 April 2019|
|1441||25 February 2020||25 March 2020|
|Rajab dates between 2010 and 2020|
- 01 Rajab, birth of Shī‘ah Imām, Muhammad al-Bāqir
- 03 Rajab, death of Twelver Imām, ‘Alī al-Naqī
- 05 Rajab, birth of Twelver Imām, ‘Alī al-Naqī
- 06 Rajab, Many Sufi followers of the Chishti tariqa (path) celebrate the anniversary of Khawaja Moinuddin Chishti
- 07 Rajab, Twelvers observe the Festival of Imam Musa al-Kazim in dedication of Musā' al-Kādhim.This is so that we do not miss celebrating the birth of the 7th Imam which took place in the month of Safar. In the 7th month (Rajab), on the 7th day we celebrate the birth of 7th Imam.
- 08 Rajab, Shayk Sultan Nazim adil Al Haqqani passes away, a Turkish Cypriot Sufi Muslim sheykh and spiritual leader of the Naqshbandi tariqa.
- 09 Rajab 932 AH, the Battle of Panipat and the establishment of the Mughal Empire
- 09 Rajab, birth of ‘Alī al-Asghar
- 10 Rajab, birth of 9th Imam Twelver Imām, Muhammad al-Taqī
- 13 Rajab, birth of ‘Alī ibn Abī Tālib
- 14 Rajab, passing of Shayk Habib Ahmad Mashoor al Hadad Bin Taha
- 15 Rajab, death of Zainab bint Ali
- 16 Rajab, birth of Gulam Ghous Qadri Sadik shah baba
- 18 Rajab, death of Abraham (In accordance with Shi'a Islam)
- 20 Rajab, birth of Sakina bint Hussain
- 22 Rajab, Koonday (table cloth dinner) is organized by Shiites (Not all, as it is controversial) among Muslims of South Asia. It is an occasion for Muslims to discuss Allah and the Ahlul Bayt and to strengthen ties among the community with love and compassion. It is purported to be the day Mu'āwiyah died
- 24 Rajab, victory to Muslims in the Battle of Khaybar
- 25 Rajab, death of 7th Imam Twelver Imām, Musā' al-Kādhim
- 26 Rajab, death anniversary of Abu Talib ibn Abdul Muttalib, Uncle of Muhammad and father of Imam Ali
- 27 Rajab, Majority of Muslims, along with Shī‘ah Muslims observe the Mi'raj (the day Muhammad is believed to have ascended to heaven). It is a national holiday in some Muslim countries.
- 28 Rajab, Husayn ibn ‘Alī started his journey to Karbalā from Medina.
- 28 Rajab 1342 A.H. (3 March 1924), the Ottoman Caliphate was abolished by Mustafa Kemal Atatürk
- In the year 5 A.H Bilal ibn al-Harith is reported to have brought a congregation of four hundred men named Banu Muzeena in the presence of Muhammad. They all embraced Islam.
- The Battle of Tabouk took place in Rajab, 9 A.H. (October 630)
- The second Oath of Aqabah took place in Rajab, 12 A.H. (September 633)
- Jerusalem was captured by Saladin in the month of Rajab, 583 A.H. (September/October 1187)
- Nakba Day on 6 Rajab 1367 A.H. (15 May 1948)