‘Ubada b. as-Samit reported God's messenger as saying, “The best shroud is a lower garment and one which covers the whole body, (The Arabic has al-kulla, which means the two garments known as the izar (lower garment) and rida' (a cloak which covers the whole body)) and the best sacrifice is a horned ram."
Abu Dawud transmitted it; and Tirmidhi and Ibn Majah transmitted it from Abu Umama.
When Abu Sa'id al-Khudri was about to die he called for new clothes and put them on, then said he had heard God’s messenger say, “The dead will be resurrected in the clothes in which he died."
Ibn ‘Abbas said God’s messenger commanded that those killed at Uhud should be stripped of iron and skins and buried in their clothing without having the blood washed off.