Musnad Ahmad 3701

It was narrated from ‘Abdullah (رضي الله عنه) that he said: I heard a man reciting a verse and I had heard it differently from the Messenger of Allah (ﷺ), so I brought him to the Messenger of Allah. The face of The Messenger of Allah (ﷺ) changed, or I saw disapproval on the face of the Messenger of Allah (ﷺ). And the Messenger of Allah (ﷺ) said: “You are both good. Those who came before you got into disputes concerning it (the Book) so they were doomed." Shu’bah said: Mis'ar narrated it to me from him, and attributed it to ‘Abdullah from the Prophet (ﷺ) "So do not differ.”