My mother swears at me not to fast the voluntary fasts, so I do not obey her. Is there any sin on me?

Question:
We conclude this session with a message from a sister in Algeria. Her question says: Honorable Shaykh, may Allah preserve you. It is my custom to fast on Mondays and Thursdays and the White Days, but my mother tries to prevent me, especially in the summer. She says, "Do not fast, you are young," and she swears at me to make me break my fast. But I do not break it because it is difficult for me and it saddens me greatly, because I find much pleasure, tranquility, and rest in fasting. Fasting helps me overcome my pains and sorrows. Am I sinful for defying my mother? Please guide us, and may you be rewarded.

Answer:
This is a good deed. Fasting on Mondays, Thursdays, and three days of every month is a prescribed matter. If this does not affect your health, does not prevent you from being dutiful to your mother, and does not prevent you from the work you need and your household needs, then fasting is good. You can convince your mother that there is no blame on you, and that you find pleasure and assistance in obedience in it. The mother's intention is only compassion. If you explain to her that this makes you happy, that it pleases you, and that it strengthens you and helps you in obedience, I do not think the mother will object to this. Yes.