Is it permissible for the heirs to dispose of the deceased's will by investing a portion of one-third of his wealth in a growing business and spending its returns on charitable projects, given the impossibility of fulfilling the condition because most of the deceased's wealth is in properties?

The execution of a deceased's will is obligatory, as long as it does not exceed one-third of the estate. It is not permissible to delay or violate it. If the inheritance consists of fixed assets, a portion of them equivalent to the bequest must be sold, and the proceeds invested in a commercial project managed by the person designated by the deceased. The profits from this project are then to be spent on charitable causes according to the will.