Who inherits from Salih, and how is the inheritance distributed among his mother, his paternal uncle, and his full sister?

If the heirs are limited to a full sister, a mother, and a full paternal uncle or a paternal uncle through the father, then the full sister receives one-half as a prescribed share (3 shares out of 6), and the mother receives one-third as a prescribed share (2 shares out of 6). The remainder goes to the full paternal uncle or paternal uncle through the father by virtue of 'asaba (residuary heirship) (1 share). Inheritance matters must be submitted to the Sharia courts for investigation and to ensure that there are no other heirs, bequests, or debts.