Must the father's will be carried out to pay the remaining amount for the land, and would not carrying it out result in sin, filial disobedience, or harm to the father?

1. A written will that was not witnessed by the testator or whose execution was not requested by him is neither established nor enforced.

2. If it is proven that the bequeathed amount is a debt owed by the deceased, it must be paid from his estate before distribution, whether he willed it or not.

3. Payment of the deceased's debt from his estate must be expedited if the estate is sufficient to cover it.

4. If the deceased did not leave enough to cover his debt, the heirs are not obliged to pay it on his behalf, but paying it is considered an act of righteousness towards him.