Is it permissible, in Islamic law, for a man to bequeath all his property to his two daughters, to the exclusion of his brothers and sisters, on the grounds that they are not in need and are financially capable?

It is permissible for a person to transfer ownership of all his possessions to his two daughters if he has no other children, because equality in giving is only obligatory among children. However, if the transfer of ownership occurs during a death illness, it takes the ruling of a will, and a will to an heir is not permissible without the consent of the other heirs. The same applies to a will exceeding one-third of the estate.