Which is better: renovating a dilapidated waqf or establishing a new waqf, and what is the reward for someone who restores a dilapidated waqf?

If the repair of an endowment does not cost much, then the one who carries out the repair will be rewarded for its restoration, even if he is not among the people for whom the endowment was made. This is like someone who sees a mosque on the verge of collapse and restores it; it is as if he contributed to the restoration of a mosque. The same applies to the restoration of schools or charitable endowments designated for associations and the like.