Suristan

The Middle Persian toponym Sūristān, used during the Sasanian period (224–651), had two meanings:

• Sūristān, another name for Asoristan,^[1][2] the Sasanian province also known as "Dil-i Ērānshahr"^[1]
• Sūristān, today's Kufa in Iraq, according to al-Baladhuri's account of the foundation of Kufa^[3]