Is zakat obligatory on the gold owned by the mother, in addition to the gold she bought for her son for his marriage approximately two years ago?

Regarding the gold owned by your mother: - If it is not jewelry, its zakat (definition) is obligatory if its conditions are met. - If it is jewelry, the majority of scholars hold that its zakat is not obligatory, while some say it is obligatory, which is closer to piety. - How to pay its zakat: Its quantity is determined. If it reaches the nisab (definition) (85 grams of pure gold or 595 grams of silver) by itself, or by adding money or trade goods to it, and a lunar year has passed over it, then its zakat becomes obligatory, which is one-quarter of one-tenth (2.5%).

As for the gold your mother bought for your brother to be a mahr for whoever he marries: - If it is still with her, its zakat is a matter of dispute, and the Malikis favored the opinion of its obligation. - According to this opinion, the mother pays its zakat every year if it reaches the nisab, even if it is by combining it with what she owns, because it is still in her possession, and she pays one-quarter of one-tenth (2.5%) for it.