Sa‘d, from Muhammad ibn ‘Isa, from Sama‘ah ibn Mihran, who said:
I asked Abu Abdillah عليه السلام, peace be upon him, about wearing silk and brocade. Imam عليه السلام said: "As for during war, there is no problem, even if it contains images (tamathil)."
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 221