It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Arguing about the Qur'an is disbelief." The narration of Mu'tamir from Muhammad bin Amr is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs (Bukhari and Muslim) did not record it, while as for Umar bin Abi Salamah, they did not use him as evidence.