Hadith 1644
'Uqba bin Amir reported: My sister took a vow that she would walk bare foot to the house of Allah (Ka’bah). 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.
Hadith 1886
It has been reported on the authority of 'Amr bin al-'As that the Messenger of Allah (ﷺ) said: All the sins of a Shahid (martyr) are forgiven except debt.