2. Narrated Ibn Mas'ud: I heard a person reciting a
(Quranic) Verse in a certain way, and I had heard the
Prophet reciting the same Verse in a different way. So I
took him to the Prophet and informed him of that but I
noticed the sign of disapproval on his face, & then he
said, "Both of you are correct, so don't differ, for the
nations before you differed, so they were destroyed."
(Sahih Al-Bukhari, Vol. 4, Hadith 682)