Musnad Abu Ya'la al-Mawsili 160:187

Abu Musa al-Ansari narrated to us, he said: Muhammad ibn Ma'n narrated to me, he said: My father narrated to me, from Sa'id ibn Abi Sa'id, from Abu Hurayrah, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "The grateful eater is in the position of the patient faster."