Can he donate his share of the inheritance before it is divided for memorisation of the Qur’aan?

The estate should be divided quickly, after paying off any
debts the deceased had, if applicable, and his bequests should be carried
out, so that each heir will be given his due and will be able to make use of
it in whatever way he wants. 

If there is any reason to delay sharing out the estate, and
the estate has been evaluated and your share of the estate is known, such as
if each heir will get a house, for example, and you want to donate your
house to a charity that teaches memorisation of the Qur’aan, there is
nothing wrong with that. 

It says in Fataawa al-Lajnah ad-Daa’imah (16/440): A
man died eight years ago and left behind an estate that included houses,
residential land, shops, cars and other things, and it has not been divided
until now. One of the heirs invested it by doing business in the shops and
he spent from that on himself and his family; he even paid the dowry for his
marriage from it. The question is about the following rulings: 

1.Is any zakaah due on the estate
for this period? If the answer is yes, should zakaah be paid for all the
past years or for one year? Is there any zakaah on the houses and
residential land?

2.What is the ruling on the money
that was spent on the dowry, maintenance and so on?

3.What are the consequences of
the delay in dividing the estate and the impact of that on the shares of
others?

Please advise us, may Allah reward you. 

Answer: 

Firstly: zakaah must be paid on the estate by the heirs, each
according to his share of it, because the estate moved from the possession
of the deceased to that of the heirs when he died, if the estate is in the
form of wealth. If it is real estate which was intended to be sold, then
zakaah must be paid one year after the date of death. If the real estate was
intended to be rented out, then zakaah must be paid on the rent received, if
it reached the nisaab (minimum threshold) by itself or when added to other
wealth that is subject to zakaah, and one year has passed since the date of
the rental contract. 

Secondly: whatever each of the heirs has spent of the estate
before it was divided is part of his share of the estate. 

Thirdly: the division of the estate should not be delayed,
because of what results from that of delay in giving people what they are
entitled to and hence a delay in paying zakaah, because each heir may argue
that he did not know what his share was or that he had not received it. End
quote. 

And Allah knows best.