Impermissibility of the Waqf administrator disposing of it, either by selling it or exchanging it for another, except in the best interest of the Waqf

Q: I have a piece of agricultural land in Al-Shaqiq. I bought it and cultivated it. In 1370 A.H. I endowed this land saying, 'After I die this land shall become a Waqf (endowment) for the Masjid (mosque) of the village of Al-Munqati`ah, my birth place and for its well's facilities.' However, a good person built the Masjid in a modern architectural style after it had been built from straw. Also, the government, may Allah protect them, built the well and made a water network in the village and some of its suburbs. It should be noted that the land mentioned became waste during my absence. It remained unused for a long time, so I decided to sell it for 20,000 SR at the present time then build a Masjid in the village where I live now with its price, namely Al-Ghabshah tribe village. However, I delayed this until I seek your advice. I hope you will guide me on what to do. May Allah grant you success (Part No. 16; Page No. 76) in doing all that is good.

A: If the reality is as you mentioned, it will be permissible for you to sell the land you mentioned and spend its price on building the Masjid you intended to build. There is no harm in that, provided that it is all done through the legal court in your country. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.