The poisoning report is real, but it does not prove that Prophet Muhammad (PBUH) was a false prophet. It shows that he was human, vulnerable to suffering, and still protected by God until his mission was completed.
Why the argument sounds forceful
The critic's strongest point is this: if God protected and informed His messenger, why would a hostile woman at Khaybar be able to serve him poisoned meat? And if the meat later "told" him it was poisoned, why was it not prevented before anyone ate? The report in al-Bukhari is often quoted because, near death, the Prophet (PBUH) remembered its lingering effect:
"O Aisha, I still feel the pain caused by the food I ate at Khaybar, and at this time I feel as if my aorta is being cut from that poison."
Sahih al-Bukhari 4428
So the fair question is not whether the poisoning happened. It is what that event means.
Divine protection never meant no pain or no death
The Quran does not teach that prophets are immune from illness, wounds, assassination attempts, or even being killed. It says the opposite about human mortality:
"Muhammad is no more than a messenger; messengers have passed away before him. So if he dies or is killed, will you turn back on your heels?"
Quran 3:144
"We did not grant everlasting life to any human being before you; so if you die, will they live forever?"
Quran 21:34
God's promise of protection means that people would not destroy him before he conveyed the message. It does not mean he would never be injured at Uhud, never suffer fever, never grieve, and never die. Classical scholars understood the verse "Allah will protect you from the people" in this way: protection for the delivery and completion of the mission, not a guarantee of bodily invulnerability.
Prophets do not know the unseen independently
Another hidden assumption is that a true prophet must automatically know every danger. Islam rejects that. A prophet knows what God reveals, when God reveals it.
"Say: I do not say to you that I possess the treasures of Allah, nor do I know the unseen..."
Quran 6:50
So the Prophet (PBUH) being served poisoned food is not a theological problem. He lived by normal human means unless revelation came. Reports that the poisoned meat informed him after he had tasted it show precisely this: God exposed the plot and prevented the assassins from ending his life at that time. Some reports mention a companion dying from the poison; that is tragic, but it does not change the principle. Prophets and their companions were not promised a life free of trial.
The "aorta" argument proves less than it claims
Some critics connect this hadith to the Quranic warning that if the Prophet (PBUH) had fabricated revelation, God would seize him and cut his life-vein. But that passage is about God vindicating revelation against forgery, not about every possible death involving severe pain near the chest or throat.
"Had he falsely attributed some sayings to Us, We would have seized him by the right hand, then We would have cut from him the life-vein."
Quran 69:44-46
The hadith says "as if" his aorta was being cut - a description of intense suffering. It occurred years after Khaybar, after the Quran had been delivered, Islam had spread, and the Prophet (PBUH) had completed his mission. The Quranic threat is not a coded prediction that any later painful death would disprove him.
What the reports establish is an attempted poisoning, the Prophet's (PBUH) lasting pain, and his fully human death. They do not establish that God failed to protect His messenger, nor that the message was false. In Islamic belief, his suffering was not a disgrace; it was part of the trials through which God raises His prophets and completes their witness.