Is hitting one's younger siblings for their benefit considered undutifulness to the parents if the mother gets angry about it?

Question:
May Allah reward you. The questioner says: Sometimes I hit my younger siblings for their benefit. For example, if I find my younger brother smoking, I hit him, and likewise after advising him and enjoining good. This hitting only happens after repetition. Similarly, with my younger sister, I am careful about her dress and her modesty. But my mother gets angry when I do this, even if I am just advising them, not for any other reason, but because of her intense love for them. Consequently, they persist in their behavior and do not respond to me. So, is what I am doing considered undutifulness to my mother?

Answer:
This is not undutifulness to your mother. This is excellence toward your siblings, and raising your siblings. If she orders you to leave that, do not obey her in this, because she is ordering you to leave the obligatory, leaving what is right, and raising your siblings in goodness. So do not obey her in this, but convince her. Say to her: This is for their benefit, this is for their upbringing, and this is for their benefit. But do not be severe in the hitting. Do not be severe in the hitting. Not the painful, very painful hitting. Hitting that is not severe. And it should not be too loud, limited to five hits or fewer. Yes.