وَلَا يُغْسَلُ عَنِ الشَّهِيدِ دَمُهُ، وَلَا يُنْزَعُ عَنْهُ ثِيَابُهُ،
Translation: The martyr’s blood is not washed away and his clothes are not removed,
Damuhu concerns the blood associated with the wounds. Preserving it follows the special rule that the body is not washed.
Thiyabuhu means his ordinary clothing. The instruction does not cover all attached objects indiscriminately; specific items are to be removed.