It was narrated that Anas bin Malik said:
"I was with the Messenger of Allah on a journey, and he said: 'Is there any water?' He performed ablution and wiped over his leather socks, then he joined the army and led them (in prayer)." (IT)
English reference (IT): Vol. 1, Book 1, Hadith 548 (IT)
Arabic reference (IT): Book 1, Hadith 591 (IT)