It is narrated from Hazrat Abu Juhaim (may Allah be pleased with him) that once there was a disagreement between two men regarding a verse of the Noble Qur'an. One said, "I have recited it in this way from the Prophet (peace and blessings be upon him)," and the other also said, "I have received it in this way from the Prophet (peace and blessings be upon him)." Eventually, they asked the Prophet (peace and blessings be upon him), and he said, "The Noble Qur'an can be recited on seven letters, so do not dispute about the Noble Qur'an, for disputing about the Qur'an is disbelief."