How is the inheritance distributed if the heirs are: a mother, 3 daughters, 6 sons, 6 grandsons (sons of a son), 3 full brothers, 1 full sister, and 6 sons of a full brother?

The mother receives one-sixth as a prescribed share due to the presence of a direct descendant. The remainder is for the six sons and three daughters by way of ta'sib (agnatic inheritance), with the male receiving the share of two females. Nothing goes to the grandsons, the sister, the brothers, or their sons, as they are excluded by the direct son of the deceased. Thus, the inheritance is divided into eighteen shares: the mother receives three shares, each son receives two shares, and each daughter receives one share. Cases of inheritance should be referred to the Sharia courts for investigation.