As for the narration reported by al-Husayn ibn Sa'id from Uthman, from Sama'ah, who said:
I asked him: "How is Tayammum (dry ablution) done?" He placed his hand on the ground and wiped his face and his forearms up to the elbows.
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 220