How is the estate of a man who has four daughters, a wife, and nephews to be divided, knowing that his wife was his partner in his struggle and contributed with her salary to the household expenses?

If a man dies and leaves behind a wife, four daughters, and brothers, and has no other heirs such as a father or mother, then his wife receives one-eighth, and the daughters receive two-thirds. The remainder goes to his brothers' sons if they are all sons of full brothers or paternal half-brothers. However, if some are sons of full brothers and others are sons of paternal half-brothers, then the remainder goes to the sons of the full brothers. Sons of maternal half-brothers do not inherit. If the wife was a partner in the husband's properties, her share in the partnership is deducted first and is not included in the inheritance. Only the husband's estate is then divided among the heirs. The wife's partnership must be proven in courts or by the acknowledgment of the heirs. Inheritance matters must be referred to Sharia courts for investigation and to ensure there are no wills, debts, or other heirs.