Quran Al-Haqqah 69:44-47
Had the Messenger made up something in Our Name, We would have certainly seized him by his right hand, then severed his aorta, and none of you could have shielded him ˹from Us˺!
If the Messenger "made up something", how would he be punished?
Sahih al-Bukhari 4428
The Prophet (ﷺ) in his ailment in which he died, used to say, “O `Aisha! I still feel the pain caused by the food I ate at Khaibar, and at this time, I feel as if my aorta is being cut from that poison.“
When the Prophet was poisoned, how did he say it felt?
Sunan Abi Dawud 4513
On the authority of his father: Umm Mubashshir said to the Prophet (ﷺ) during the sickness of which he died: What do you think about your illness, Messenger of Allah (ﷺ)? I do not think about the illness of my son except the poisoned sheep of which he had eaten with you at Khaybar. The Prophet (ﷺ) said: And I do not think about my illness except that. This is the time when it cut off my aorta.
Grade: Sahih in chain (Al-Albani)
https://www.answering-islam.org/Silas/mo-death.htm
How did the Prophet describe the illness that he got from the poisoned sheep?
Sahih Al-Bukhari 3169 (Narrated Abu Huraira)
When Khaibar was conquered, a roasted poisoned sheep was presented to the Prophet (ﷺ) as a gift (by the Jews). The Prophet (ﷺ) ordered, “Let all the Jews who have been here, be assembled before me.” The Jews were collected and the Prophet (ﷺ) said (to them), “I am going to ask you a question. Will you tell the truth?” They said, “Yes.” The Prophet (ﷺ) asked, “Who is your father?” They replied, “So-and-so.” He said, “You have told a lie; your father is so-and-so.” They said, “You are right.” He said, “Will you now tell me the truth, if I ask you about something?” They replied, “Yes, O Abu Al-Qasim; and if we should tell a lie, you can realize our lie as you have done regarding our father.” On that he asked, “Who are the people of the (Hell) Fire?” They said, “We shall remain in the (Hell) Fire for a short period, and after that you will replace us.” The Prophet (ﷺ) said, “You may be cursed and humiliated in it! By Allah, we shall never replace you in it.” Then he asked, “Will you now tell me the truth if I ask you a question?” They said, “Yes, O Abu Al-Qasim.” He asked, “Have you poisoned this sheep?” They said, “Yes.” He asked, “What made you do so?” They said, “We wanted to know if you were a liar in which case we would get rid of you, and if you are a prophet then the poison would not harm you.”