Musnad Ahmad 22:23

Muhammad ibn Ja‘far narrated to us, Shu‘bah narrated to us, from Yahya ibn Abi Ishaq, who said: I heard Sulayman ibn Yasar, [who said] Al-Fadl narrated to us, [and] said: I was riding behind the Messenger of Allah, may Allah bless him and grant him peace, and a man asked him and said: "My father—or my mother—is a very old person who cannot perform Hajj." Then he mentioned the hadith.