Through this chain of narration, from Muhammad ibn Ya’qub, from Ali ibn Ibrahim, from his father, from Hammad ibn Isa, from Hariz, from Abu Abdullah عليه السلام, who said: Imam عليه السلام said: "Whoever washes a deceased person must perform ghusl." Imam عليه السلام continued: "If someone touches the body while it is still warm, then no ghusl is required. However, if the body has cooled and they touch it, then they must perform ghusl." I asked: "What about the one who places the body in the grave?" Imam عليه السلام replied: "No ghusl is required for that, as they only touch the clothing."