Is it permissible to purchase copies of the Qur’an inscribed with "A gift from the King to the pilgrims of the Sacred House of Allah" and "Endowment for the sake of Allah the Almighty, not to be sold"?

An endowment (waqf) cannot be sold, gifted, or inherited. Since it is established that endowed Qur’ans (mushafs) cannot be bought or sold, it is obligatory to advise those who sell them. There is no sin upon a Muslim in purchasing them with the intention of recovering them from those who have usurped and traded in them. One may then benefit from them personally or give them to someone who will benefit from them, in order to fulfill the intention of the endower. However, they transfer to the buyer as an endowment, so he is not permitted to sell them thereafter. The condition of the endower may not be altered; rather, they should be returned to the entity for which they were endowed if possible. Otherwise, they should be distributed to the closest deserving entities. This purchase is, in reality, an act of recovery and redemption, and it is permissible on the part of the buyer, but not the seller.