Is financial maintenance obligatory for a son toward his parents if they are wealthy?

Question:
He says: Honorable Shaykh, may Allah grant you success, is financial maintenance obligatory for a son toward his parents if they have a retirement pension, or is it obligatory in all cases?

Answer:
No, it is not obligatory. If the parents are wealthy, financial maintenance is not obligatory for the son toward them because they are not in need. However, the father is permitted to take from his son's money, even if maintenance is not obligatory for him.