His brother Fadl reported that he was riding behind the Messenger of Allah ﷺ on the morning of the Day of Sacrifice when a woman from Khathaam came to him.She said, "Messenger of Allah, the obligation of Allah upon His servants regarding the pilgrimage has reached my father as an old man who cannot sit firmly on a mount. May I perform the pilgrimage on his behalf?"He replied, "Yes, for if your father had a debt, you would pay it off for him."
حدثنا عبد الرحمن بن إبراهيم الدمشقي حدثنا الوليد بن مسلم حدثنا الأوزاعي عن الزهري عن سليمان بن يسار
عن أخيه الفضل أنه كان ردف رسول الله ﷺ غداة النحر فأتته امرأة من خثعم فقالت يا رسول الله إن فريضة الله في الحج على عباده أدركت أبي شيخا كبيرا لا يستطيع أن يركب أفأحج عنه قال نعم فإنه لو كان على أبيك دين قضيته
Bukhari narrated it in Penalty of Hunting, chapter on Hajj performed on behalf of one who is unable to remain firmly seated on the mount, hadith no. 1853, 1854, and Muslim in Hajj, chapter on Hajj performed on behalf of one incapacitated due to chronic illness, old age, or similar conditions, or on behalf of the deceased, hadith no. 1335, from the hadith of Ibn Shihab Zuhri through this chain.