Is it permissible to pay Zakat to cover the travel expenses of one's elder brother for work?

It is permissible to give Zakat to a poor brother who has no money and whose parents cannot provide for him, because he is among those eligible to receive Zakat. However, it is necessary to transfer ownership of the Zakat to him so that he can dispose of it himself. It is not permissible for you to buy him a travel ticket or anything else from Zakat money without his permission.