Is the husband obligated to spend on his brothers and sisters who are able to work, and is it permissible for him to neglect his home and children under the pretext of fearing his mother's anger?

A husband is not obligated to spend on his brothers if they are not in need. However, there is no harm in doing so if he spends on his wife and children appropriately, especially if it pleases his mother. If, however, he falls short in providing for his wife and children and instead donates to his brothers, he is sinful. The husband must balance his spending, save a portion of his money for his household, and give everyone their due, for the best dinar is that which is spent on one's family.