Here’s a translation of the decree, followed by the original in Arabic. AINA cannot confirm the authenticity of this document.
The Islamic State of Iraq and Syria
The State of Nineveh
In the Name of Allah the Merciful
After liberation of the State of Nineveh, and the welcome shown by the people of the state to their brotherly mujahideen, and after the great conquest, and the defeat of the Safavid [Persian] troops in the State of Nineveh, and its liberation, and Allah willing, it will become the headquarters for the mujahideen. Therefore we request that the people of this state offer their unmarried women so that they can fulfill their duty of jihad by sex to their brotherly mujahideen. Failure to comply with this mandate will result in enforcing the laws of Sharia upon them.
Allah we have notified, Allah bear witness.
Translated for AINA by Dr. Samir Johna.
Here is the original proclamation in Arabic: