Sahih Muslim Book 24, Hadith Number 5182.

Chapter : Modesty in case of garments and preference for the coarse cloth for wearing and the permissibility of wearing cloth made of (camel’s) hair.

Abu Burda reported that ‘Aisha brought out for us the lower garment and the upper garment made of the Mulabbada cloth and said: It was in these (clothes) that Allah’s Messenger (may peace be upon him) died. Ibn Hatim (one of the narrators) in his narration Wd: The lower garment of coarse cloth.