’Abdullah bin Masʿood said: We differed concerning a soorah of the Qurʿan and said; (It is) thirty-five verses or thirty-six. We went to the Messenger of Allah ﷺ and found ‘Ali ؓ conversing with him. We said: We have differed concerning the recitation. The face of the Messenger of Allah ﷺ turned red and ‘Ali ؓ said: The Messenger of Allah ﷺ is telling you to recite it as you were taught.
فَانْطَلَقْنَا إِلَى رَسُولِ اللهِ ﷺ فَوَجَدْنَاعَلِيًّا يُنَاجِيهِ فَقُلْنَا إِنَّا اخْتَلَفْنَا فِي الْقِرَاءَةِ فَاحْمَرَّ وَجْهُ رَسُولِ اللهِ ﷺ فَقَالَ عَلِيٌّ إِنَّ رَسُولَ اللهِ ﷺ يَأْمُرُكُمْ أَنْ تَقْرَءُوا كَمَا عُلِّمْتُمْ