Kurayb narrates from Ibn Abbas (may Allah be pleased with them both) that a man came to the Messenger of Allah (peace and blessings be upon him) and said: "O Messenger of Allah! My sister has vowed to perform Hajj on foot." He (peace and blessings be upon him) said: "Allah has no care for this act of your sister. Let her perform Hajj riding and make expiation for her oath."
Only Sharik al-Qadi narrated it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النذور / 20120