Is Zakat obligatory on the money of a student studying abroad who is sponsored by the state if it reaches the nisab and a hawl has passed on it? And is it permissible to give it for marriage support or to needy relatives other than one's parents?

Zakat is obligatory on the aforementioned amount because of complete ownership, reaching the nisab, and the passing of a full year (hawl). It is permissible to give it to someone who needs to get married but cannot afford the expenses. It is also permissible to give zakat to poor relatives whom the zakat payer is not obligated to support. Giving zakat to them is more deserving and better than giving it to others, as it combines charity and maintaining kinship ties.