Building a small mosque to the extent of the need

Question:
And other than that, in my opinion, the leaders of the Ansar or the lame would allocate a small mosque for them, because the neighborhood in which he resides is currently the last of the Prophet of Allah (peace and blessings be upon him), because it is new, and I want to analogize to it a small mosque, and we do not know what gold some of them will have in the future, so it will be a return, is it permissible to volunteer in it in the future and add to its mind, or will it be a return that remains and one does not benefit from volunteering in it?

Answer:
Build the mosque now to the extent of the need, even if it is small; build it to the extent of the need. If mosques are found nearby in the future, then you ask. As for you asking now and then something happens later, that has no place in the question. But if you build the mosque now to the extent of the need, you will be rewarded, if Allah wills, and followed. If something is found that suffices for it from mosques at that time, then you ask the people of knowledge. Yes.