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.
‘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.
Sa'd b. Ibrahim told on his father’s authority that ‘Abd ar-Rahman b. ‘Auf was brought food when he was fasting and said, “Mus'ab b. ‘Umair who was better than I am was killed and was shrouded in a cloak added that he thought he said ‘And Hamza who was better than I am was killed.’) Then we were given such great worldly wealth as we have been given (or, We have been given such worldly goods as we have been given), and I am afraid that my good things have been given me in advance.” He then began to weep and left the food untouched.
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."