Is zakat due on the funds of the Family Takaful (Solidarity) Fund, which operates on the basis of Murabaha, and how is it calculated?

If the money allocated for these purposes has been removed from the owner's possession such that it cannot be returned to him, then there is no Zakat (definition) on it because it is considered like an endowment (waqf). However, if the money remains in the owner's possession with the intention of returning it to him while benefiting from its profit, then Zakat is obligatory on the money of its depositor according to each person's share. So, whoever's share reaches the nisab (definition), or reaches the nisab when added to other money, must pay Zakat on it after one year has passed.