Narrated 'Uqba bin 'Aamir (RA):

His sister took a vow to walk to Allah's House (for pilgrimage) barefooted. Then, she ordered him to consult Allah's Messenger (ﷺ), so he consulted him for a religious verdict and the Prophet (ﷺ) replied, "Let her walk and ride." [Agreed upon, and the wording is Muslim's].

وَعَنْ عُقْبَةَ بْنِ عَامِرٍ ‏- رضى الله عنه ‏- قَالَ: { نَذَرَتْ أُخْتِي أَنْ تَمْشِيَ إِلَى بَيْتِ اَللَّهِ حَافِيَةً, فَقَالَ اَلنَّبِيُّ ‏- صلى الله عليه وسلم ‏-

لِتَمْشِ وَلْتَرْكَبْ

} مُتَّفَقٌ عَلَيْهِ, وَاللَّفْظُ لِمُسْلِمٍ.‏ [1]‏ .‏