Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: A man was thrown by his camel and killed, so the Messenger of Allah (peace and blessings be upon him) said: "Wash him with water and lote-tree leaves, shroud him in his two garments, do not apply perfume to him, and do not cover his head, for he will be raised on the Day of Resurrection with his hair matted (in the state of ihram)."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12490