Fadalah narrated from Aban, from ‘Abd al-Rahman ibn Abi ‘Abdillah, from Abu ‘Abdullah عليه السلام:
Imam عليه السلام said: "Do not place the embalming mixture (Hanoot) in the ears of the deceased."
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 326