Fourth construction of Imam Hussain Holy Shrine

On the 9th of Dhul al-Hujjah, 273 A.H. the dome built by al-Muntassir collapsed suddenly while people were paying a special visit to Imam Hussain on Arafat Day and many pilgrims were injured. Among the few rescued were Abu Abdullah Mohammed ibn Umran ibn al-Hajjaj, a notable man in Kufa, who narrated the accident. The reason behind the accident remains unknown, however this initiated a new construction by the followers of Ahl alBayt.