Narrated Anas: The Prophet (peace be upon him) saw an old man walking, supported by his two sons, and asked about him. The people informed him that he had vowed to go on foot (to the Ka`ba). He said, “Allah is not in need of this old man’s torturing himself,” and ordered him to ride.
28 Penalty of Hunting while on Pilgrimage
Hadith number 1865
Volume no 3
Chapter: 27 (Whoever vowed to go on foot to the Ka’bah)