Musannaf Ibn Abi Shaybah

Hazrat Sa’d, who was the freed slave of Hazrat Amr bin Al-Aas, narrates that two men argued over a verse of the Qur’an, and both brought their dispute to the presence of the Messenger of Allah, peace and blessings be upon him. He said: Do not argue about this, for arguing about the Qur’an is disbelief.