Is it obligatory to sell the house and perform Hajj with its value on behalf of the deceased and his wife, according to his will, or do his two daughters inherit the house?

First, the will regarding the house must be proven. If it is not proven, the house belongs to the heirs, and the man has no right to dispose of it.

If the will is proven, then the recommended Hajj should be considered: - If it was an obligatory Hajj that was not performed on his behalf, the house should be sold, and its price should be used solely for performing Hajj on his behalf, even if the price exceeds one-third of the inheritance, because it is a bequest for an obligation. - As for Hajj on behalf of the wife, or the supererogatory Hajj on behalf of the testator, their bequests fall within one-third of the inheritance. Money from the sale of the house should be spent on performing Hajj on their behalf as long as it does not exceed one-third. Otherwise, the permission of the heirs is required for anything exceeding one-third.

It is recommended to consult scholars directly for more details.