Islamic State militants have decided to organize a Quran memorization contest during Ramadan, the holy month in Islam. The reward for contest winners will be sex slaves.

The Da'wa and Mosques Department in Al-Baraka province in Syria will use women as prizes. The practice of giving away humans as prizes is called “sibya.” The contest was announced at the start of the Islamic holy month on June 19.

The Syrian Observatory for Human Rights reported in 2014 that 300 Yazidi girls had been captured in Iraq. The U.K.-based monitoring group said that the girls had been sold to ISIS militants in Syria for $1,000.

The Quran chapters chosen for the ISIS contest are believed to be the most warlike passages in the entire book. Militants believe that Ramadan is the ideal time for religious extremism.

The Clarion Project has translated the advertisement of the contest that asks ISIS “soldiers” to take part in it. The Suras in the contests include Surat Mohammad, Surat al-Tawba, Surat al-Fath and Surat al-Anfal.

Interested candidates are asked to contact the imams of four mosques for registration. The mosques are the Mosque of Abu Musab el-Zarqawi, the Mosque of Osama Bin Laden, the Mosque of Abu Bakr el-Sadiq and the Mosque of el-Taqwa.

The prizes of the contest will be awarded on the first day of Eid el-Fitr. A slave girl will be awarded to each of the first three winners. Those in fourth to 10th place will be awarded cash prizes. The holder of the fourth position will be awarded $462 (100,000 Syrian lira).

According to the Clarion Project’s national security analyst Ryan Mauro, ISIS wants to portray that it follows the true form of Islam. “The contest and its underlying competition demonstrate that fighters are studying the Koran, and that ISIS is not affected by international condemnation,” Fox News quoted Mauro as saying. “By showcasing its slavery, ISIS is boasting that it practices Islam in its most literal interpretation, doesn't capitulate to public opinion and rejects modern interpretations.”

Muslims are strongly encouraged to read the Quran during the month of Ramadan. According to Islamic beliefs, Prophet Mohammad received the holy book during this month.