Does the supplication of a righteous son benefit his father if he is a hypocrite?

Question:
He says: Honorable Shaykh, may Allah grant you success, if a hypocrite is supplicated for by his righteous son, does that benefit him?

Answer:
If his hypocrisy is not of the kind that takes one out of the religion, if his hypocrisy is not of the kind that takes one out of the religion, but rather it is practical hypocrisy, then that benefits him. But if his hypocrisy is of the kind that takes one out of the religion, then it is not permissible to seek forgiveness for him. Allah the Exalted said: Do not stand at his grave to seek forgiveness, not after the burial The heart of the one in pure hypocrisy, this does not drop, but we have only the apparent, we have only the apparent, so we judge by the appearances only, as for the hearts, none knows them except the Knower of the Unseen, Glorified and Exalted is He.