From the Holy Qur'an: Chapter 6, Part 2 of 3

Had any of them fallen into idolatry, their works would have been nullified. Those were the ones to whom we have given the scripture, wisdom, and prophethood. If these people disbelieve, we will substitute others in their place, and the new people will not be disbelievers. These are the ones guided by God; you shall be guided in their footsteps. Say,” I do not ask you for any wage. This is but a message for all the people.