Narrated Anas b. Malik : The Messenger of Allah (ﷺ) saw a man that he was supported between his sons. He asked about him, and (the people) said: He has taken a vow to walk (on foot). Thereupon he said: Allah has no need that this man should punish himself, and he ordered him to ride. Abu Dawud said: 'Amr b. Abi 'Amir has also narrated a similar tradition from al-A'raj on the authority of Abu Hurairah from the Prophet (ﷺ)

English translation · Sunan Abu Dawud