How is the inheritance calculated if the heirs are a father, five full brothers, and three full sisters?

If the heirs are limited to a father, five full brothers, and three full sisters, then the father bars the brothers and sisters from inheriting, and the entire inheritance goes to him. This is because the condition for the brothers and sisters to inherit—namely, the absence of a male ascendant heir—is not met. It must be noted that matters of inheritance are serious and complex; a mere fatwa is insufficient. Rather, the case must be submitted to the Shar'i courts for investigation and to ensure there are no wills, debts, or other rights that take precedence over the heirs' rights.