It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him): We were discussing the Qur'an together near the door of the Messenger of Allah (peace and blessings be upon him), one drawing an argument from one verse and another from another verse. Then the Messenger of Allah (peace and blessings be upon him) came out, and (out of anger) his (peace and blessings be upon him) face was so red, as if pomegranate seeds had been squeezed over it. He (peace and blessings be upon him) said: "O people, is it for this that you were sent? Or is this what you were commanded? Do not turn back after me into disbelievers, some of you striking the necks of others."
Hadith Referenceالمعجم الأوسط / باب الميم / 8470
Hadith Takhrij«أخرجه البزار فى «مسنده» برقم: 11 / 11، والطبراني فى «الكبير» برقم: 5442»