Musnad Ahmad 5:352

Muhammad ibn Salamah narrated to us, from Ibn Ishaq, from Aban ibn Salih, from Ikrimah, who said: I departed from Muzdalifah with al-Husayn ibn Ali, and I did not cease hearing him reciting the talbiyah until he threw stones at the Jamrat al-Aqabah. I asked him, and he said: I departed from Muzdalifah with my father, and I did not cease hearing him reciting the talbiyah until he threw stones at the Jamrat al-Aqabah. I asked him, and he said: "I departed from the Prophet, peace and blessings of Allah be upon him, from Muzdalifah, and I did not cease hearing him reciting the talbiyah until he threw stones at the Jamrat al-Aqabah."