'A'isha reported, I did not see anyone else being afflicted with more severe illness than Messenger of Allah ﷺ. In the narration transmitted by 'Uthman there is a slight variation of wording.
عَائِشَةُ مَا رَأَيْتُ رَجُلاً أَشَدَّ عَلَيْهِ الْوَجَعُ مِنْ رَسُولِ اللَّهِ ﷺ وَفِي رِوَايَةِ عُثْمَانَ مَكَانَ الْوَجَعِ وَجَعًا