Sahih Bukhari V5, B59, N713 reported:
...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 now, I feel as if my aorta is being cut from that poison."
(After a failed attempt to go to Mecca Mohammad and his followers attacked and plundered the weaker Jewish settlement of Khaibar where he was poisoned)
Answer 3 (comment on answer #2 above)One can read historical books to be sure of this saying. Refer to links below.
Mohammad Din Mohammad died in 2007.
Mohammad Mohammad Sadeq al-Sadr died in 1999.
Mohammad Usman died in 1948.
Mohammad Donyavi died in 1995.
Mohammad Mokri died in 2007.
Jan Mohammad died in 2002.
Mohammad Nissar died in 1963.
Mohammad Toha died in 1946.
Mohammad Oraz died in 2003.
Mohammad Ghaznavi died in 1041.
Mohammad Boroujerdi died in 1983.
Ghaus Mohammad died in 1982.