From this we learn two points:
First, that such disagreement is forbidden.
Second, that we must take heed of those who preceded us and beware of resembling them.

Know that most of the discord within the ummah that breeds partisan impulses falls into this category: each disputant is correct in what he affirms—at least in part—but errs when he denies what the other holds. Thus, each of the two reciters was right to read according to the mode he had been taught, yet wrong to reject the mode of his companion. Most ignorance arises in negation—outright denial and rejection—rather than in affirmation, for it is easier for a person to grasp what he affirms than to have full knowledge of all that he negates.

For this reason this ummah has been forbidden to pit the verses of Allah against one another, for the upshot of such pitting is to believe in one verse while disbelieving in another when one imagines a contradiction between them—whereas two opposites cannot coexist.

A parallel case is found in the report narrated by Muslim from ʿAbd Allāh ibn Rabāḥ al-Anṣārī, who said that ʿAbd Allāh ibn ʿAmr related: “I once came early to the Messenger of Allah, peace and blessings be upon him, and he heard the voices of two men arguing over a verse. The Messenger of Allah, peace and blessings be upon him, came out to us with anger apparent on his face …”