An-Nahl · 16:102

102. Say to them, O Messenger, This Qur’ān has been brought down by Gabriel (peace be with him) from Allah, may He be glorified, with the truth that contains no error, alteration or distortion, to keep those who have faith in Allah firm on their faith, whether a new part is revealed or a part is abrogated, and to be a guidance for them to the truth and good news for the Muslims about the generous reward that they will obtain.