Are the unbelievers rewarded for doing good, based on His — the Most High’s — saying: "And whatever good they do, never will it be denied them"?

The disbelievers are rewarded for their good deeds in this world, but they will have no share of them in the Hereafter, as Allah Almighty says: "And We shall turn to whatever deeds they did [in this life] and make them as scattered dust." (Qur’an 25:23). And the Prophet, peace and blessings be upon him, said: "As for the disbeliever, he is fed for the good deeds he did for Allah in this world until, when he reaches the Hereafter, he has no good deed for which he can be rewarded."

As for the meaning of the verse, "And whatever good they do, never will it be denied to them" (Qur’an 3:115), it speaks about the believers among the People of the Book who embraced Islam, such as Abdullah ibn Salam and others, distinguishing them from other People of the Book, and that no good deed they did will be lost.