I know lil to nothing about him, apart from what our teachers taught us at school. I like histroy but I don't have time to waste and check others faults and deaths when I myself need to check my faults and have death look at me in my face every second. I would like to spent sometime studying histroy but I'm overburdened by learning about behaving myself, acting upon the sunnah, talking to Allaah through Qur'aan and focusing on my Salah. My day is only 24 hours! and I don't even know arabic to begin with. Yikes!
Our textbook history is largely devoid of facts. I don't blame you for believing it because we have been nurtured that way. Pakistan's history has been so shrewdly manipulated and has been presenting as if we were the most pious people... I'd love to talk about that but that's not the topic of discussion right now.
So, let me come back to the death of Mohammad Bin Qasim. His death was ordered by Hajjaj for an awful reason. You asked for book references so let me quote from a history book, "Chachnamah".
Chachnama:
.... The next day when the king of stars made his appearance from behind the curtain of night, a camelman bearing a letter from the capital of the Khalifahs arrived. Muhammad son of Ali, and Abdul Hasan Humadani relate that at the time of Rai Dahar's death, two of his virgin daughters had been captured in his seraglio. Muhammad Kasim sent them in charge of some Abyssinian servants to the holy city of Baghdad. The Khalifah ordered them to be taken into his seraglio, in order that they might take rest and be comforted for some days, and be in a fit condition to be admitted into his bed-chamber. After some
time the Khalifah remembered them, and ordered that both, of them be brought to him at night. When they came, Walid son of Abdul Malik required his interpreter to make the usual enquiries, and to ask them as to which of them was the elder, so that one of them might be kept back and taken care of till her sister's turn was over. The interpreter first asked their names. The elder of them said, “My name is Surijdew,” and the younger said “My name is Pirmaldew.” He then called the elder sister to himself, and ordered the
younger to be removed and taken care of. When he seated the elder near himself, she unveiled her face and the Khalifah of the time looked at it, and became charmed with her perfect beauty. Her blood-sucking blandishments, took away patience from his heart, and he began to take liberties with her, and, catching hold of Surijdew, pulled her to himself. Surijdew sprang up and said: “May the king live long: I, a humble slave, am not fit for your Majesty's bed-room, because the just amir, Imaduddin Muhammad Kasim kept us both with him for 3 days, and then sent us to the Khalifah. Perhaps your custom is such, or else this kind of disgrace should not be permitted by kings.” At that
moment his passion for the girl blinded the Khalifah. He lost patience, and his excess of jealousy did not permit him to make any enquiries. He therefore immediately sent for pen, ink and paper, and with his own hands wrote an order, directing that “Muhammad Kasim should, wherever he may be, put himself in raw leather and come back to the chief seat of the Khalifah."