In The Name of Allah, The Beneficent, The Merciful
At least everyone is in agreement that the verses 80:1-10 refer to an incident in Mecca when Abdullah bin Umm Maktum, a blind man, came to a gathering where the Prophet was talking to some people among whom were some leaders of Quraysh. When Abdullah bin Umm Maktum came to that gathering, someone frowned and turned away from him.
Question: Who frowned and turned away from the blind man?
The Qur’an does not give the name. The Sunni version of the event say that it was the Prophet of Islam who frowned and most Shi’I sources, following the teachings of the Imams of Ahlu ‘l-Bayt (who obviously knew the Prophet better than others) say that it was one the leaders of the Quraysh who frowned and turned away from the blind man.
Obviously the correct version is that which does not contradict the Qur’an and no one can challenge this method of determining the significance of any event or incident mentioned in the Qur’an including identifying the person or persons involved in a particular event or incident.