Is it permissible for a father to prevent his sons who did not help him during his illness from inheriting?

The questioner : ... Their father is an elderly man, and they have younger brothers. Their father is a pious and distinguished man of religion. It is their right to inherit, and he should not withhold it from them, even if they did not support him during his illness.

The Shaykh : No, it is not permissible for him to deprive them of their inheritance, whether they are righteous or wicked.

The questioner : Or wicked, absolutely not.

The Shaykh : And peace be upon you.