Musnad Abu Ya'la al-Mawsili 160:142

Abu Bakr ibn Abi Shaybah narrated to us, Abu Khalid narrated to us, from Ibn ‘Ajlan, from Sa‘id, from Abu Hurayrah, who said: It was among the supplications of the Prophet, may Allah bless him and grant him peace: "O Allah, I seek refuge in You from knowledge that does not benefit, and from a supplication that is not heard, and from a heart that does not humble itself, and from a soul that is never satisfied."