For He (SWT) sends them a man to interpret the religion for them...
For He (SWT) sends them a man to interpret the religion for them, yet this man is subject to magical spells, as the Israelites’ reports claim, and mental hallucinations that cause him to become unaware of his own behaviour! (6) What kind of interpreter is that? Exalted be Almighty Allah from such allegations against His Prophet (PBUHH)!
sixth, for those among Sunnis who say that the Prophet (PBUHH) is sinless or infallible only in the delivery of Allah’s (SWT) message, and other than that, just like any other man, he (PBUHH) sins and makes mistakes in many things, such assertion is full of logical holes. For instance, Sunnis narrated that once the Prophet gave advice on agriculture, and people did it, but they suffered a big loss by following that advice!!
Then Prophet told them that what he said was his personal advice and not revelation!!! (which is, by the way, in contradiction with the verse: “Nor does he (prophet) speak out of his desire. What he says is nothing but the revelation that is revealed). (7) How do we know which of the Prophet’s sayings are from Almighty Allah, and which are his personal sayings?
He (PBUHH) may say something which the companions take as Allah’s command, but it may be that he (PBUHH) was only expressing his own opinion. If that happens, then all of Allah’s laws will be in chaos and disarray! That is why, even the Prophet’s opinion has to conform with Allah’s orders, for fear of misinterpretation by the people.
In fact, the Prophet had a perfect reason and his Ijtihad was in perfect compliance with Allah’s orders and satisfaction and that is why Quran orders us to obey whatever he states without condition. Also, how can we understand which acts of the Prophet are wrong, and which are right? What is the measure for us? Isn’t a part of this measure the practice of the Prophet (PBUHH) himself?
Since the practice of the Prophet (PBUHH) is considered to be one of the sources of deriving the rules of Islam, we cannot evaluate the Prophet’s actions by the rules which are derived from his actions! As such all the actions of the Prophet should have been protected. Seventh, for the Prophet (PBUHH) to be chosen to deliver Allah’s (SWT) message (one of which was the Quran) and be himself a sinner, will cast doubt on the authenticity of the Quran.