Musnad Ahmad 32:735

'Abd al-Razzaq narrated to us, Ma'mar informed us, from Ayyub, from Abu Qilabah, from Anas, who said: I was riding behind Abu Talhah while he was traveling alongside the Prophet, may Allah bless him and grant him peace. He said: "My foot was touching the stirrup of the Prophet, may Allah bless him and grant him peace," and I heard him reciting the Talbiyah: "For Hajj and 'Umrah together."