Musnad Ahmad 30:2957

Waki' narrated to us, he said: Al-A'mash narrated to us, from Abu Salih, from Abu Hurairah, or from Abu Sa'id - Al-A'mash was uncertain - he said: "It will be said to the companion of the Qur'an on the Day of Resurrection: 'Recite and ascend, for your station is at the last verse you recite.'"