The Ruling on Obedience to Parents in Leaving Recommended Acts

Question:
What is the ruling if a person fasts the white days, and during the fast one of his parents swears an oath that he should break his fast? Does he break his fast, or does he complete the fast?

Answer:
Dutifulness to parents is obligatory, and fasting the white days is recommended. Therefore, the recommended is not prioritized over the obligatory. If his parents are compassionate toward him and fear for him because it is a time of intense heat, or something similar, or because he is neglecting matters that benefit them—neglecting what benefits them and that they need from the household needs, such as selling, buying, plowing, farming, and the like, and they are in need of that—
The point is: if their intention is good and kind, he should obey them and not fast the voluntary fast; because the voluntary fast is recommended, and dutifulness to them is obligatory, and the obligatory takes precedence over the recommended.

Question: If the intention is compassion for the son?

Answer: Even if, even if, if the fast disturbs them, and it may lead to them cutting off their relationship with him or becoming angry with him, let him fear Allah.