Mishkat al-Masabih 29 Excellent Qualities and Description of the Prophet كتاب الفضائل والشمائل 221

وَعَنْهَا قَالَتْ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ فِي مَرَضِهِ الَّذِي مَاتَ فِيهِ: «يَا عَائِشَةُ مَا أَزَالُ أَجِدُ أَلَمَ الطَّعَامِ الَّذِي أَكَلْتُ بِخَيْبَرَ وَهَذَا أَوَانُ وَجَدْتُ انْقِطَاعَ أَبهري من ذَلِك السم» . رَوَاهُ البُخَارِيّ

She told that in the illness from which he died God’s messenger I was saying, “`A’isha, I still feel the pain from the food I ate at Khaibar, and this is the time when I feel my aorta being cut because of that ‘poison.” Bukhari transmitted it.