Is it permissible to refuse to dig a public water well for the mosque during a water crisis, on the pretext that an individual fears for his private well, knowing that the interest of the community takes precedence over the interest of the individual?

It is permissible to dig a well in the mosque for public interest, though it is disliked, provided that it does not disturb worshipers or impede prayer. No one has the right to prevent the digging out of fear of its water running out, as the well is outside his property.