Musnad Ahmad 30:3662

Yahya ibn Hammad narrated to us, Abu 'Awanah informed us, from al-A'mash, from Abu Salih, from Abu Hurayrah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Be moderate in prayer, for behind you are the weak, the elderly, and those with needs." He said: And Ibrahim al-Taymi narrated to us, from al-Harith ibn Suwayd, from Abdullah, the like of that. He said: And Ibrahim ibn Abdullah narrated to us, the like of that. He said: And Habib ibn Abi Thabit narrated to us, from Sa'id ibn Jubayr, from Ibn Abbas, from the Prophet (peace and blessings of Allah be upon him), the like of that.