[Pooya/Ali Commentary 17:54] As the "mercy unto the worlds" the Holy Prophet was concerned about the fate of the disbelievers, but according to the will and plan of Allah all human beings enjoy full freedom to choose between good and evil, therefore, on the part of the Holy Prophet, it was enough that he conveyed to them the message of Allah and invited them to the right path. It is Allah who grants mercy to whom He wills and punishes whom He wills.