What is the ruling on usurious interest gained from a scholarship in a foreign country, and is it permissible to use this interest to pay water bills?

The fundamental principle regarding usurious interest is that it is unlawful wealth that must be disposed of by spending it on Muslim welfare or giving it to the poor and needy. Its owner may not benefit from it unless they are poor and the scholarship grant does not meet their needs; in such a case, they are permitted to take from it what suffices their need. However, if they are wealthy, they are not permitted to benefit from it; rather, they must dispose of it.