Hadith.448 - Sulayman ibn Khalid asked Imam Jafar ibn Muhammad Al-Sadiq عليه السلام:
"Does one who washes the deceased need to perform ghusl (ritual purification)?"
Imam عليه السلام replied: "Yes."
He then asked: "What about someone who places the deceased in the grave?"
Imam عليه السلام replied: "No, because he only touches the clothing."