Qasim ibn Hasan

Qasim ibn al-Hasan (Arabic: القاسم بن الحسن‎‎) ( Sha'aban 7, 47 AH /September 19, 668 CE– Muharram 10, 61 AH /October 10, 680 CE), was the son of Hassan ibn Ali and grandson of Ali ibn Abi Talib and Fatimah. He took part in battle of Karbala and was killed. He was 14 years of age in the battle of Karbala and known as a young warrior.

Qasim was born three years before the death of his father, Hasan ibn Ali, Shia's second Imam. He, like his cousins, Aun and Muhammad, who were his aunt Zaynab's sons. He learn fencing from his uncle Abbas ibn Ali and his cousin Ali Akbar.

When Hasan's brother Husayn ibn Ali prepared to leave Medina in 680, Qasim's mother Umm Farwa asked Husayn to take her and Qasim with him.

There is some narrations stated that Qasim was married to Husayn's daughter, Fatima Kubra, three days before battle of Karbala, while in some sources explained Qasim's wedding never happened and the story is not correct.

The night before Ashura

Qasim ask his uncle that: "Will I also be among the martyrs?" Husayn ibn Ali replied: "How do you see death?" Qasim said: "O uncle, death to me is sweeter than honey."

Day of Ashura

On the day of Ashura, Qasim, like other cousins before him, went to his uncle to ask for permission. Husayn would not permit him because he was so young and could not bear the thought of anything happening to him. This went on for many times until Qasim gave up and went to the tent his mother was in. When his mother saw her son is upset, she gave him a letter that Qasim's father, Hassan ibn ali, had written for his son before he died. In the letter it was written,

"My son Qasim, a day will come when my brother Husayn will be facing an enemy army of tens of thousands. That will be the day when Islam will need to be saved by sacrifice. You must represent me on that day."

Qasim read the letter and gave to his uncle. After reading the letter Husayn said,

"O my brother's son, how can I stop you from doing what your father wanted you to do? In the Name of Allah, go! Allah be with you!"

He went to the battle field and killed a lot of Yazid's forces. A man came from behind and hit Qasim with his sword to which he fell.