What is the minimum [frequency] for a son to visit his father to avoid being disobedient to him, and what is his duty towards him, especially given the political and religious disagreements between you, and his verbal abuse and lying about you?

The disobedience and impiety of a father, or even his disbelief, do not permit one to be disobedient to him or to abandon one's duty to honor him, as Allah Almighty says: {And accompany them in [this] world with appropriate kindness.} The degrees of connection and honoring parents vary according to ability and need, and disobedience must certainly be avoided. Scholars have differed on the precise definition of forbidden disobedience, and the closest opinion is that it is any action that causes parents significant harm, or involves contradicting them in their permissible desires. As for honoring them, it is done through kindness in speech, love, avoiding harsh words, teaching them what benefits them, and associating with them in a befitting manner. There is no general limit to the number of times one should visit a father; rather, it is determined by the prevailing custom among people.