And from him, from Hammad ibn ‘Isa, from Shu‘ayb ibn Ya‘qub, from Abu Basir, who said:
I asked Abu Abdillah عليه السلام, peace be upon him, about prayer in the houses of the Magians (Zoroastrians). Imam عليه السلام said: "Sprinkle (them with water), and then pray."
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 237