Ali ibn Mahziyar narrated from Aban, from Zurarah, who said that Abu Ja‘far عليه السلام said:
Imam Al Baqir عليه السلام said: "Water should not be heated for the deceased."
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 342