On Tuesday, the closing ceremony was held with speeches by intellectuals and a series of final declarations.
Senior government officials form Islamic countries and Hundreds of Shia and Sunni scholars attended the gathering.
The ongoing challenges and crises facing the Muslim world were the main subjects discussed in the international event.
This year's event gathered over 300 religious leaders, clerics and researchers from over 70 countries.
Addressing the inaugural ceremony on Sunday, Iranian President Rouhani said the Islamic world is currently at a critical juncture, urging all Muslim nations to strengthen unity to counter enemies’ plots.
During the unity week all Muslims Sunni or Shia celebrate the birth of the prophet of Islam.
In a final communiqué participants urged Muslims around the world to be wary of enemies’ plots that aim to create rifts among them. The 29th Islamic Unity Conference came to an end urging Muslims to unite on commonalities.
It is noteworthy that the founder of the Islamic Republic, Imam Khomeini has been a great promoter of the Islamic unity among the followers of the divine religions, Muslim sects and oppressed nations.