A type of waqf, namely, an inalienable charitable endowment or trust established according to Islamic law to serve the public (as distinct from waqf dhurri or waqf mushtarak). Often, this takes the form of a self-sustaining building or business that generates revenue given in charity. This type of waqf can include mosques, roads, schools, wells, cemeteries, hospitals, etc. A waqf khayri can also be set up to support a specific group, such as students, scholars, or orphans.
Because it is crucial to financing public spaces and services, waqf khayri has historically been fundamental to Islamic economies throughout the centuries in different regions.
There are many conditions for starting a waqf khayri, the most important of which is that it be done solely for the sake of God and not for any worldly gain. There must be a specific, identifiable, and present asset or property that is to be endowed, and it must be used to promote social welfare in some way.
Once the waqf is established, it cannot be revoked or destroyed. As such, the waqf property or asset is no longer owned by the donator, but is rather regulated by a government organizing body. This body differs over time. Today, the Ministry of Endowments in each Muslim country runs the waqf khayri.