How is inheritance distributed among the deceased's heirs: a wife, two daughters, and two sons, with a will stating that a sum of money be given to his disabled brother for the purpose of his marriage?

The deceased's wife receives one-eighth due to the existence of a lineal descendant. The two sons and two daughters receive the remaining inheritance by ta'sib (agnatic inheritance), with the male receiving the share of two females. The estate is divided into 48 shares: the wife receives 6 shares, each son receives 14 shares, and each daughter receives 7 shares. As for the money the deceased was collecting for his brother, if he did not bequeath it to his brother after his death, it is considered a gift. It should be examined whether it fulfilled its jurisprudential conditions; otherwise, the deceased's share of the collected money will be part of the estate and distributed among the heirs.