من لا يحضره الفقيه, volume 1, page 159

Hadith.444 - Aban ibn Taghlib asked Him about a man who is killed in the path of Allah (swt): Should he be washed, shrouded, and embalmed (with Hunut)?" Imam (as) replied: "He should be buried as he is, in his clothing with his blood, unless there is a sign of life remaining. If he has a sign of life and then dies, he should be washed, shrouded, embalmed, and the funeral prayer should be offered for him. This is because the Messenger of Allah (sw) prayed over Hamza, shrouded him, and embalmed him because he had been stripped (of his clothing)”.

Translation: Bab Ul Qaim Publications·Thaqalayn link·The Arabic above is the original.

Hadith.445 - Hanzalah ibn Abu 'Amir, known as "the Rahib," was martyred at the Battle of Uhud. The Prophet Muhammad (sw) did not command that he be washed, saying: "I saw the angels washing Hanzalah with water from the clouds, using silver vessels." Because of this, he was given the title "Ghasil al-Malaika" (The One Washed by the Angels).

Translation: Bab Ul Qaim Publications·Thaqalayn link·The Arabic above is the original.

Hadith.446 - The Commander of the Faithful Imam Ali ibn Abi Talib (as) said: "From a martyr, the fur, shoes, cap, turban, belt, and trousers should be removed, unless they have been stained with blood ; if they are stained with blood, they are to be left on. No tied item should remain on the body; it must be untied."

Translation: Bab Ul Qaim Publications·Thaqalayn link·The Arabic above is the original.