مختصر صحيح مسلم
Mukhtasar Sahih Muslim
Issues of Vows
Vowing to walk to the Kaaba.
`Sayyiduna Uqbah bin Amir (may Allah be pleased with him) says that my sister made a vow to walk barefoot to the House of Allah, so she asked me to inquire from the Messenger of Allah (peace and blessings be upon him). He (peace and blessings be upon him) said that she may walk and also ride.