Day of ashura
For remembrance of Imam Hussain’s 6-month-old child, Ali al-Asghar, who was martyred on the day of Ashura in Karbala, many people dress up their infants like this in a special mourning ceremony on the 6th day of Muharram and also on the day of Ashura:
Imam Husayn and his companions were all in thirst in the hot dessert of Karbala even his six month old infant, but the enemy shot a three-headed arrow to the infant’s throat and cut his head off instead of opening the gate of river or giving them a drop.