Mumbai: The parched plains of Karbala desperately needed a respite from a dry spell. Unable to bear the sight of his 6-month-old son Ali Asghar's thirst, Imam Hussain requested Yazid's army to lift the ban on the waters of Al Khama, a tributary of the River Tigris, for the tents of Hussain and his companions. Instead of receiving water, the child got an arrow, dying instantly.