Silsilat al-Ahadith al-Sahihah

Abu Qais, who was the slave of Amr ibn al-As (may Allah be pleased with him), narrates that Sayyiduna Amr ibn al-As (may Allah be pleased with him) heard a man reciting a verse of the Noble Qur’an and asked: “Who taught you this verse?” He replied: “The Messenger of Allah (peace and blessings be upon him) did.” He (Amr) said: “The Messenger of Allah (peace and blessings be upon him) also taught me this verse, but in a different manner.” Both of them went to the Messenger of Allah (peace and blessings be upon him), and one of them said: “O Messenger of Allah! Such-and-such verse,” and then he recited it. The Prophet (peace and blessings be upon him) said: “It was revealed in this way (as you have recited).” The other said: “O Messenger of Allah!” and then he recited the same verse (in a different manner) and said: “O Messenger of Allah! Was this verse not revealed in the way I have recited it?” The Prophet (peace and blessings be upon him) said: “It was revealed in this way as well.” Then the Prophet (peace and blessings be upon him) (giving the final decision) said: “Indeed, this Noble Qur’an was revealed upon seven dialects; whichever dialect you recite in, you will be correct. (Just remember that) do not dispute regarding the Noble Qur’an, for such disputing is disbelief.”