Advising a father who shaves his beard

The questioner:
What should a person say to his father if he is shaving his beard, and how should he advise him? Ah.

The Shaykh:
He should advise him with kind words, just as he would advise him regarding sins or shirk (associating partners with Allah). He should say, "My father, the Messenger (peace and blessings be upon him) said such and such. My father, I am advising you to follow the Sunnah and to act according to the Sunnah. Do this with kind words, not with violence or harshness. A father has a great right, but he should be advised with kind words. Likewise, people should be advised with kind words, but a father’s matter is even greater. A father’s matter is even greater. And so it is with elders, princes, and leaders; one should be gentle in advising them so as not to repel them, so that they do not reject the truth. But with kind words and a good manner, one achieves much good.
And if a father orders his son to shave his beard, he does not obey him. The Prophet (peace and blessings be upon him) said, "Obedience is only in what is right." There is no obedience to a created being in disobedience to the Creator. Likewise, if he orders his wife to do something, she does not obey him, or if he orders her to bring smoke or intoxicants, she does not obey him in that. Obedience is only in what is right. But there must be a good response. She says, "My son, this is not permissible for me, but I listen and obey. However, it is not permissible for me to obey you in what is not right." Her words should be kind so that they have an effect on his heart. Yes.