Clarification of the endowment that is handed over to the Endowments Administration

Question:
He says: Honorable Shaykh, may Allah grant you success, is it a condition that the endowment be handed over to the Endowments Administration, given that the father (may Allah have mercy on him) specified in the bequest that the supervisor of the endowment should be the most suitable of his children?

Answer:
An endowment for a general purpose, such as an endowment for mosques, is handed over to the Endowments Administration. An endowment for mosques is handed over to the Endowments Administration. However, an endowment for a specific person is not handed over to the Endowments Administration.