Is it permissible for him to drink from bottles of water that he donated to the mosque?

It is not permissible to sell or buy a waqf

Ruling on investing waqf funds

If he sets up a waqf for his children and their children, that does not include the children of his daughters

A waqf does not become binding by merely forming the intention

Ruling on using a bus belonging to a Qur’an memorisation school for other charitable purposes that are not connected to it

It is not valid to make a waqf of social media pages

Ruling on taking the Mushaf out of the mosque or replacing it with another

Should the mosque be sold or demolished when the inhabitants leave?

It is not permissible to dispose of wealth given as a waqf for the mosque by lending or borrowing