Anas reported that Allah's Apostle (ﷺ) saw an old man being supported between his two sons. He (the Holy Prophet) said
What is the matter with him? They said: He had taken the vow to walk (on foot to the Ka'ba). Thereupon he (Allah's Apoitle) said: Allah is indifferent to his inflicting upon himself chastisement, and he commanded him to ride.
Abu Huraira reported
Allah's Apostle (ﷺ) found an old man walking between his two sons supported by them, whereupon Allah's Apostle (ﷺ) said: What is the matter with him? He (the narrator) said: Allah's Messenger, they are his sons and there is upon him the (fulfilment) of the vow, whereupon Allah's Apostle (ﷺ) said: Ride, old man, for Allah is not in need of you and your vow.
This hadith has been narrated on the authority of 'Amr b. Abu 'Amr with the same chain of transmitters.
'Uqba b. Amir reported
My sister took a vow that she would walk bare foot to the house of Allah (Ka'ba). She asked me to inquire from Allah's Messenger (ﷺ) about it. I sought his decision and he said: She should walk on foot and ride also.
This hadith has been narrated on the authority of 'Uqba b. Amir Juhani. but in this no mention has been made of" barefoot".
'Uqba. b. Amir reported Allah's Messenger (ﷺ) as saying
The expiation of the (breach of) a vow is the same as that of the (breach of an oath).