Can the inheritance be calculated if the heirs are: three daughters, a wife, and a full sister?
The wife receives one-eighth due to the existence of a lineal descendant, as Allah Almighty says: "But if you have a child, then for them [i.e., the wives] is one-eighth of what you leave, after any bequest you [may have] made or debt." The three daughters receive two-thirds, based on His saying, the Almighty: "But if there are [only] daughters, two or more, for them is two-thirds of what he left." The remainder goes to the full sister by ta’sib (residuary heirship), due to the established fact that the Prophet, peace and blessings be upon him, gave the sister the remainder after the daughter's share. Inheritances must be referred to Sharia courts to verify the existence of other heirs, bequests, or debts that take precedence over the heirs' right.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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