the Holy Qur'an

None of Our revelations do We abrogate or cause to be forgotten, but We substitute something better or similar: Knowest thou not that God Hath power over all things? (2:106)

When We substitute one revelation for another,- and God knows best what He reveals (in stages),- they say, "Thou art but a forger": but most of them understand not. (16:101)

End of Quotes