On the 10th day of Muharram 61 AH when Imam al-Husayn (a) came into the tent to bid farewell to his family members, he held the hand of his sick son, Alī ibn al-Husayn (a) and pressed it against his chest. He (a) then said, “O son! I am teaching you a Du’a which you should remember. Angel Jibra’il (a) taught it to my grandfather (saww) who passed it to my mother Fatimah (sa). Whenever you have a special need or are faced with any calamity or crisis, or are inflicted with any grief or hardship, then recite the following supplication: