Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei led the Eid prayers in Tehran on Monday, and felicitated the Iranian people and other Muslims on the occasion, which he called “a day of compassion and reward.”

President Hassan Rouhani issued a message, congratulating Muslims on the occasion of the Eid.

“Across Muslim societies, understanding the grandeur of this month and this Eid represents the great festival of unity of all Muslims and their collective diligence in reducing differences and eliminating such plights as poverty, extremism, violence, and terrorism from the geography of the Muslim world,” the message read.

The president also thanked the nation for their wholesale participation in the demonstrations marking the International Quds Day on Friday.

The participation, he said, had sent across their “clarion call in defense of the rightfulness of the region’s down-trodden nations, liberation of the noble al-Quds, and condemnation of Takfiri terrorism.”

Muslims in Asia and a number of Middle Eastern countries celebrated the Eid-al-Fitr religious holiday on Sunday with prayers for peace as they marked the end of Islam's holy month of Ramadan.

In each Muslim country, religious scholars are tasked with observing the sky to spot the crescent of the moon, which signifies the beginning of Shawwal, the month that follows Ramadan in Islamic calendar.

In line with their respective scholars’ observation, many Muslim nations marked the occasion on Sunday. In Iran, however, the festivities fell on Monday, when the Iranians laid out their prayer rugs on the streets after the traditional style of saying the day’s prayers.