Ibrahim (may Allah have mercy on him) said: "When a person is killed on the battlefield, he should neither be given a ritual bath nor be perfumed; rather, he should be shrouded in his clothes, in an odd number among them. Those things should be removed from him which are outer garments or socks. And if he is picked up while there is still some life in him, then he should be given a ritual bath, perfumed, and the funeral prayer should be offered for him."
Hadith Referenceسنن سعید بن منصور / كتاب الجهاد / 3751
Hadith Takhrij«أخرجه سعيد بن منصور فى «سننه» ترقيم الدرالسلفية برقم:، 2574، وابن أبى شيبة فى «مصنفه» برقم: 11122، 33487»