The Chapter on Tayammum (Dry Ablution)

From Zurarah, he narrates that Imam Muhammad ibn Ali Al-Baqir عليه السلام, said: 'One day, the Messenger of Allah صلى الله عليه وعلى آله وسلم said to Ammar while on a journey, "O’ Ammar, it has reached us that you became junub (ritually impure due to sexual discharge). What did you do?" Ammar replied: "I rolled in the dirt, O’ Messenger of Allah صلى الله عليه وعلى آله وسلم." The Prophet then said to him, "This is how a donkey rolls. You should have done this instead." He then placed his hands on the clean earth, wiped his forehead with his fingers, and then wiped the back of each hand with the other hand, and he did not repeat it ’.