Narrated through this chain from Muhammad ibn Ahmad ibn Yahya, from Mu’awiyah ibn Hakim, from Abdullah ibn Al-Mughirah, from Ibn Bukayr, from Zurarah, from Abu Ja’far عليه السلام, who said: Imam عليه السلام said: "If he is in snow, let him look to the padding of his saddle and perform tayammum with its dust or with something from it. And if he is in a situation where he finds nothing but mud, then there is no harm in performing tayammum with it."