Is it permissible to demand the blood money (diyya) for a brother who died in a car accident, knowing that social insurance in Egypt pays the blood money, and is the blood money the right of the deceased's brothers or his children?

There is no impediment to taking the blood money (diyya) for someone killed by mistake from an insurance company, a charitable organization, or an individual, because those entitled to the blood money are not responsible for how the person liable for payment acquired the money. This is supported by the permissibility of taking blood money from the People of the Book, despite their wealth being acquired through unlawful means. A distinction must be made between money being unlawful for the one who acquired it through prohibited means, and its being lawful for the one who takes it through a legitimate means. An exception to this is money to which another person has a right.

As for the division of blood money, it is distributed among the heirs just as the rest of the deceased's estate is divided. The deceased's brothers receive nothing from it if he has male children. However, if he has only daughters, the brothers receive what remains by ta'sib (residuary inheritance) after the daughters' prescribed shares.

It should be noted that matters of inheritance are serious and complex, and a mere fatwa is insufficient. Rather, they must be referred to Sharia courts for verification and investigation into wills, debts, and other rights that take precedence over the heirs' rights.