Ismat Rajab, an official with Iraq’s Kurdistan Democratic Party (KDP), told local media outlets on Friday that the terrorist group has warned residents to avoid the prayers.

The militant group has described the practice as un-Islamic, claiming that the Eid prayer has never been “originally an Islamic practice” in the early Islamic period, Rajab noted.

The first day of the month of Shawwal on the lunar calendar is called Eid al-Fitr, which is decided when the first crescent of a new moon is sighted. During the Eid, Muslims attend communal prayers, listen to sermons and give Zakat al-Fitr or donations to the poor.

Mosul, the largest city under the ISIL control, had a population of around two million before the Takfiris invaded it last year. The imposition of Takfiri rules by the militant groups has sparked fears in the troubled city, which still has a large civilian population unlike most Iraqi cites taken over by ISIL.

The ISIL Takfiri terrorist group had earlier issued a new law making full beards compulsory in the troubled region.

Takfiri militants have already demolished several holy shrines and mosques belonging to Shia and Sunni Muslims in the militancy-riddled regions of Syria and Iraq.

The terrorist group has gained notoriety for its barbarity, heinous atrocities and sacrilegious acts. The ISIL militants have been accused of committing gross human rights violations and war crimes in areas they control in Syria, Iraq, and Libya.

Muslim scholars maintain that the ISIL Takfiri terrorists serve a colonial agenda that has nothing to do with Islam.