A man died leaving a daughter, a sister, and a grandfather. How much does each of them inherit?

The daughter's share is one-half by فرض (allotted share). What remains of the inheritance after the daughter's share is divided between the grandfather and the sister, with the male receiving the share of two females, because in this case, direct partition (مُقاسمة) is better for the grandfather than receiving one-sixth or one-third of the remainder. This applies if the sister is a full sister (شقيقة) or a paternal sister (لأب). However, if she is a maternal sister (لأم), she receives nothing due to the presence of the grandfather, who excludes her. In this case, the remaining half goes to the grandfather by فرض and ta'sib (residuary heirship).

We must emphasize that matters of inheritance are complex and intricate, and it is not sufficient to rely solely on a fatwa. Rather, they must be referred to Sharia courts for investigation, as there might be other heirs, bequests, debts, or other rights that take precedence over the rights of the heirs.