Is the family of the deceased, who fell from the tenth floor causing paralysis to another person, obligated to cover the expenses and treatment of the injured, or is that merely recommended? And will the deceased be held accountable if his family does not cover them?

The deceased person who fell upon another is considered the aggressor, and the injured party is entitled to compensation for the loss of benefit, or any fracture or wound sustained. It is stated in "Kashshaf al-Qina" that if one person falls upon another and the first dies, then the blood money is incumbent upon the 'aqila (male agnates) of the second person. If the fall was intentional and usually causes death, then qisas (retaliation) is due. If it does not usually cause death, then it is considered شبه عمد (quasi-intentional). If it was accidental, then the blood money is due from his 'aqila, with mitigation. However, if the second person dies by falling upon the first, his blood is considered worthless because he died by his own action. Compensation is incumbent upon the 'aqila of the aggressor if the aggression was accidental, by scholarly consensus, if it exceeds one-third of the blood money. If the 'aqila is unable to pay, then the bayt al-mal (public treasury) pays it; otherwise, it is paid from the aggressor's own wealth. Paralysis that removes the benefit of walking incurs full blood money. The deceased's family is not obligated to provide for the injured party; rather, the injured party is entitled to compensation for the injury sustained.