from sunni perspective the prophet pbuh died normally ,, he had strong sickness before dying ,, some sunni narrations trying to relate his death pbuh to an occasion happened several years before which makes it impossible (( a jew woman tried to poison the prophet pbuh by cooking meat of sheap and poison it and give it to prophet pbuh and his friends to eat ,,, then the cooked arm talked to the prophet pbuh when he touched it ,and told him its poisoned mm the prophet pbuh asked the woman why did she do this ,, she answered she did that to know if he was not a prophet then he die , and if he was a prophet then they make sure ,,, anyway the prophet pbuh lived after this occasion by many years and his friends too who was on the same table was alive so its impossible according to shia the prophet pbuh was killed and poisoned but not through the sheap ,,, as its narrated too that imam hassan the grandson of prophet muhammad pbuh told he is going to die by poison like his grandfather prophet muhammad peace be upon them ,,wife of imam hassan pbuh is the one who poisoned him as the enemy moawya promised her to marry from his son then he just gave her money saying you killed the son of prophet pbuh how can i feel safe on my son with you !! ,,, so some narration saying that when the prophet pbuh was dying ,, his wives ((aisha > her father is the 1st one ruled muslims after prophet pbuh talking the place of the true successor imam ali pbuh and hafsa>> daughter if the 2nd ruler )) ,,, so the 2 wives and some others tried to give the prophet something when he fall unconscious many times , its some sort of medicine given to one who is sick from some disease but the prophet ordered them when he was awake dont give me this drink ,then as he fall unconscious they gave him this drink in his mouth then when he become awake he told them i told you not to give me this ,,, so there is a strong possibility that the prophet muhammad pbuh was poisoned through his wives Allah says in Quran Muhammad (SAW) is no more than a Messenger, and indeed (many) Messengers have passed away before him. If he dies or is killed, will you then turn back on your heels (as disbelievers)? And he who turns back on his heels, not the least harm will he do to Allâh, and Allâh will give reward to those who are grateful. (144) sura 3

He was sick,,, he died because he is a human being and all humans will die, no one in universe is immortal. , even prophets. He died and buried in Maddinah in Saudi Arabia.

the prophet died of sickness in old age. and in the last three days the disease has intensified.. it wasn't because of the poison .. because Allah saved him in that time . and i just want to say that The Quran is the complete and final revelation from the Almighty Creator, which was interpreted through "the actions and saying " of Prophet Muhammad (peace be upon him). as a muslim i believe in authentic hadiths .

As said sister Lolo , he is a human that dies a normal death like all humans , only ALLAH that is immortal .

continue .. Ibn 'Abbas replied, "That indicated the death of Allah's Apostle which Allah informed him of." 'Umar said, "I do not understand of it except what you understand." Narrated 'Aisha: The Prophet 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." ______________________________________… He was died at age 63.Prophet(pbuh) died while laying his head on the bosom of A'isha(r.a). As soon as the Prophet's death was announced, a crowd of people gathered at the door of the house of A'isha(r.a), exclaiming: "How can our messenger be dead?" Umar(r.a) said: "No, he is not dead; he will be restored to us, and those are traitors to the cause of Islam who say he is dead. If they say so let them be cut in pieces." But Abu Bakr(r.a) entered the house at this moment, and after he had touched the body of the Prophet(pbuh) with a demonstration of profound affection, he appear at the door and addressed the crowd with the following speech: "O Muslims, if anyone of you has been worshiping Muhammad, then let me tell you that Muhammad is dead. But if you really do worship Allaah then know that Allaah is living and will never die. Do you forget the verse in the Qur'aan: Muhammad is not more than a Messenger, and indeed (many) Messengers have passed away before him. If he dies or is killed, will you then turn your back on your heels (as disbelievers)? And he who turns back on his heels, not the least harm will he do to Allah, and Allah will give reward to those who are grateful." (Ch 3:144 Qur'aan). Upon hearing this speech of Abu Bakr(r.a), 'Umar(r.a) acknowledged his error, and the crowd was satisfied and dispersed. ____________________________________ 1). Due to an illness caused by the poison ! 2). He died in Aa'isha`s(r.a) house while laying his head on the bosom of Aa'isha(r.a). 3).He died at age 63.