Is zakat obligatory on the heirs of a deceased person for gold that the father had bought to marry off his children, and he did not pay its zakat throughout his period of owning it? And is it to be paid for all the past years or only for the last year, or is zakat not obligatory on it at all?

If a man acquired gold to sell it and marry off his children with its price, or to give it as a dowry to his children’s wives, then undoubtedly zakat (definition) is due on it. Maliki jurists held that zakat is obligatory on it if a man prepares it to give as a dowry to a woman he intends to marry. This aligns with the fundamental principle that zakat is obligatory on gold absolutely. Therefore, the zakat for this gold for all past years must be paid, and whatever remains after paying zakat becomes part of the inheritance and is divided among the heirs.