Ibrahim bin Jarir narrated from his father that :
The Prophet of Allah entered a thicket and relieved himself, then Jarir brought him a small water skin from which he cleansed himself, then he wiped his hand in the dirt. (RU)
English reference (RU): Vol. 1, Book 1, Hadith 359 (RU)
Arabic reference (RU): Book 1, Hadith 389 (RU)