Mulla ‘Ali al-Qari-Hanafi writes...
Mulla ‘Ali al-Qari-Hanafi writes:- “The Prophets are ma’sum from lie, especially concerning the matters of shari’ah and conveying of (divine) commandments and guidance of ummah, intentionally (according to ijma’) and unintentionally (according to the majority). As for all other sins there are some details as follows: They are ma’sum from kufr before bi’that and after it, according to the ijma’.
Likewise, they are ma’sum from intentionally committing major sins, according to the majority of Muslims; But al-Hashawiyyah disagree. Whether the Prophets can commit major sins unintentionally, the majority says they can. As for minor sins, the majority says the Prophets could commit it intentionally, contrary to what al-Jubba’i and his followers say.
All the scholars unanimously say that the Prophets can commit minor sins unintentionally - except such things which show meanness like stealing a morsel, or short-weighing a few grains; but the research-scholars have added a proviso that they are warned and they become cautious. However, all the above discourse concerns the period after revelation. As for the period before that, that is no proof to show that they could not commit minor sins at that time.
But the Mu’tazilites do not agree with it (i.e. according to the Mu’tazilites, the Prophets could not commit minor sins even before revelation.) And the Shi’as say that the Prophets could not commit any sin, minor or major, before receiving revelation or after if.”[^2] Study all this detailed description of the Sunnis’ actual belief on this subject, and see the clear statement that the Hashawiyyah i.e. the Wahhabis believe that the Prophets could commit major sins intentionally.
Then note how deceitfully the unknown Wahhabi writer pretends that he believes in the ‘ismah of the Prophets and Messengers of Allah. It is the established fact of Islamic history that all their Khalifas were non-ma’sum; they were not sinless or infallible. To protect them from criticism they have pulled down the Messenger of Allah (S) from the pedestal of ‘ismah, and as mentioned above, their Imam al-Bukhari has played a major role in degrading the Messenger of Allah (S).
You have seen that the Sunni scholars know and admit that the Shi’as belief concerning the ‘ismah of the Prophets is most comprehensive and that according to Shi’as the Prophets were sinless and infallible from beginning to the end of their lives and were ma’sum from all the major and minor sins.