Did Prophet Not Understand Quran? If Not Why Tafseers Written
Tafseer the requirement of the people who do not have the essentials to understand the Quran, like the background of the events, linguistic appreciation, the derived Fiqh from the injunctions, and other matters. Tafaasir is a treasure of the understanding of the great scholars. Their differences are only in technical matters and it helps to understand the Qruan from different angles. There are some mistakes and misrepresentations as well, but this is a normal and natural way to progress in any field of knowledge.
It happens in the understanding of verse, a certain injunction, in its application, its being cancelled or not, etc.